diff --git a/CHANGELOG.md b/CHANGELOG.md
index 321858f..6a847f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## V1.91
+### script
+* support Home Assistant over HTTPS (https://github.com/reserve85/HoymilesZeroExport/issues/178)
+* Support login credentials for Tasmota (https://github.com/reserve85/HoymilesZeroExport/issues/159)
+* update.sh supports custom branch, for example to update to dev path. usage: ./update.sh dev
+* option to disable a inverter (@tester277)
+* option to specify a specific emeter-index for ShellyEM [possible values: 0...1]. (https://github.com/reserve85/HoymilesZeroExport/issues/181)
+### config
+* add `[HOMEASSISTANT]`: `HA_HTTPS` 
+* add `[INTERMEDIATE_HOMEASSISTANT]`: `HA_HTTPS_INTERMEDIATE`
+* add `[TASMOTA]`: `USER` and `PASS` 
+* add `[TASMOTA_INTERMEDIATE]`: `USER_INTERMEDIATE` and `PASS_INTERMEDIATE`
+* add `[INVERTER_x]`: `ENABLED`
+* add `[SHELLY]`: `EMETER_INDEX`
+* add `[INTERMEDIATE_SHELLY]`: `EMETER_INDEX`
+
 ## V1.90
 ### script
 * fix HOY_BATTERY_THRESHOLD_NORMAL_LIMIT_IN_V, see https://github.com/reserve85/HoymilesZeroExport/issues/174
diff --git a/HoymilesZeroExport.py b/HoymilesZeroExport.py
index 393a640..4e47f29 100644
--- a/HoymilesZeroExport.py
+++ b/HoymilesZeroExport.py
@@ -15,7 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 __author__ = "Tobias Kraft"
-__version__ = "1.90"
+__version__ = "1.91"
 
 import requests
 import time
@@ -339,7 +339,7 @@ def GetHoymilesAvailable():
         for i in range(INVERTER_COUNT):
             try:
                 WasAvail = AVAILABLE[i]
-                AVAILABLE[i] = DTU.GetAvailable(i)
+                AVAILABLE[i] = ENABLED[i] and DTU.GetAvailable(i)
                 if AVAILABLE[i]:
                     GetHoymilesAvailable = True
                     if not WasAvail:
@@ -628,8 +628,10 @@ def GetPowermeterWatts(self) -> int:
         raise NotImplementedError()
 
 class Tasmota(Powermeter):
-    def __init__(self, ip: str, json_status: str, json_payload_mqtt_prefix: str, json_power_mqtt_label: str, json_power_input_mqtt_label: str, json_power_output_mqtt_label: str, json_power_calculate: bool):
+    def __init__(self, ip: str, user: str, password: str, json_status: str, json_payload_mqtt_prefix: str, json_power_mqtt_label: str, json_power_input_mqtt_label: str, json_power_output_mqtt_label: str, json_power_calculate: bool):
         self.ip = ip
+        self.user = user
+        self.password = password
         self.json_status = json_status
         self.json_payload_mqtt_prefix = json_payload_mqtt_prefix
         self.json_power_mqtt_label = json_power_mqtt_label
@@ -637,12 +639,15 @@ def __init__(self, ip: str, json_status: str, json_payload_mqtt_prefix: str, jso
         self.json_power_output_mqtt_label = json_power_output_mqtt_label
         self.json_power_calculate = json_power_calculate
 
-    def GetJson(self, path):
+    def GetJson(self, path):      
         url = f'http://{self.ip}{path}'
         return session.get(url, timeout=10).json()
 
     def GetPowermeterWatts(self):
-        ParsedData = self.GetJson('/cm?cmnd=status%2010')
+        if not self.user:
+            ParsedData = self.GetJson('/cm?cmnd=status%2010')
+        else:
+            ParsedData = self.GetJson(f'/cm?user={self.user}&password={self.password}&cmnd=status%2010')
         if not self.json_power_calculate:
             return CastToInt(ParsedData[self.json_status][self.json_payload_mqtt_prefix][self.json_power_mqtt_label])
         else:
@@ -651,10 +656,11 @@ def GetPowermeterWatts(self):
             return CastToInt(input - ouput)
 
 class Shelly(Powermeter):
-    def __init__(self, ip: str, user: str, password: str):
+    def __init__(self, ip: str, user: str, password: str, emeterindex: str):
         self.ip = ip
         self.user = user
         self.password = password
+        self.emeterindex = emeterindex
 
     def GetJson(self, path):
         url = f'http://{self.ip}{path}'
@@ -679,7 +685,10 @@ def GetPowermeterWatts(self):
 
 class ShellyEM(Shelly):
     def GetPowermeterWatts(self):
-        return sum(CastToInt(emeter['power']) for emeter in self.GetJson('/status')['emeters'])
+        if self.emeterindex:
+            return CastToInt(self.GetJson(f'/emeter/{self.emeterindex}')['power'])
+        else:
+            return sum(CastToInt(emeter['power']) for emeter in self.GetJson('/status')['emeters'])
 
 class Shelly3EM(Shelly):
     def GetPowermeterWatts(self):
@@ -766,9 +775,10 @@ def GetPowermeterWatts(self):
             return CastToInt(input - output)
 
 class HomeAssistant(Powermeter):
-    def __init__(self, ip: str, port: str, access_token: str, current_power_entity: str, power_calculate: bool, power_input_alias: str, power_output_alias: str):
+    def __init__(self, ip: str, port: str, use_https: bool, access_token: str, current_power_entity: str, power_calculate: bool, power_input_alias: str, power_output_alias: str):
         self.ip = ip
         self.port = port
+        self.use_https = use_https
         self.access_token = access_token
         self.current_power_entity = current_power_entity
         self.power_calculate = power_calculate
@@ -776,7 +786,10 @@ def __init__(self, ip: str, port: str, access_token: str, current_power_entity:
         self.power_output_alias = power_output_alias
 
     def GetJson(self, path):
-        url = f"http://{self.ip}:{self.port}{path}"
+        if self.use_https:
+            url = f"https://{self.ip}:{self.port}{path}"
+        else:
+            url = f"http://{self.ip}:{self.port}{path}"
         headers = {"Authorization": "Bearer " + self.access_token, "content-type": "application/json"}
         return session.get(url, headers=headers, timeout=10).json()
 
@@ -1110,15 +1123,18 @@ def CreatePowermeter() -> Powermeter:
     shelly_ip = config.get('SHELLY', 'SHELLY_IP')
     shelly_user = config.get('SHELLY', 'SHELLY_USER')
     shelly_pass = config.get('SHELLY', 'SHELLY_PASS')
+    shelly_emeterindex = config.get('SHELLY', 'EMETER_INDEX')
     if config.getboolean('SELECT_POWERMETER', 'USE_SHELLY_EM'):
-        return ShellyEM(shelly_ip, shelly_user, shelly_pass)
+        return ShellyEM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_POWERMETER', 'USE_SHELLY_3EM'):
-        return Shelly3EM(shelly_ip, shelly_user, shelly_pass)
+        return Shelly3EM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_POWERMETER', 'USE_SHELLY_3EM_PRO'):
-        return Shelly3EMPro(shelly_ip, shelly_user, shelly_pass)
+        return Shelly3EMPro(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_POWERMETER', 'USE_TASMOTA'):
         return Tasmota(
             config.get('TASMOTA', 'TASMOTA_IP'),
+            config.get('TASMOTA', 'TASMOTA_USER'),
+            config.get('TASMOTA', 'TASMOTA_PASS'),
             config.get('TASMOTA', 'TASMOTA_JSON_STATUS'),
             config.get('TASMOTA', 'TASMOTA_JSON_PAYLOAD_MQTT_PREFIX'),
             config.get('TASMOTA', 'TASMOTA_JSON_POWER_MQTT_LABEL'),
@@ -1151,6 +1167,7 @@ def CreatePowermeter() -> Powermeter:
         return HomeAssistant(
             config.get('HOMEASSISTANT', 'HA_IP'),
             config.get('HOMEASSISTANT', 'HA_PORT'),
+            config.getboolean('HOMEASSISTANT', 'HA_HTTPS', fallback=False),
             config.get('HOMEASSISTANT', 'HA_ACCESSTOKEN'),
             config.get('HOMEASSISTANT', 'HA_CURRENT_POWER_ENTITY'),
             config.getboolean('HOMEASSISTANT', 'HA_POWER_CALCULATE'),
@@ -1177,9 +1194,12 @@ def CreateIntermediatePowermeter(dtu: DTU) -> Powermeter:
     shelly_ip = config.get('INTERMEDIATE_SHELLY', 'SHELLY_IP_INTERMEDIATE')
     shelly_user = config.get('INTERMEDIATE_SHELLY', 'SHELLY_USER_INTERMEDIATE')
     shelly_pass = config.get('INTERMEDIATE_SHELLY', 'SHELLY_PASS_INTERMEDIATE')
+    shelly_emeterindex = config.get('INTERMEDIATE_SHELLY', 'EMETER_INDEX')
     if config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_TASMOTA_INTERMEDIATE'):
         return Tasmota(
             config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_IP_INTERMEDIATE'),
+            config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_USER_INTERMEDIATE'),
+            config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_PASS_INTERMEDIATE'),
             config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_JSON_STATUS_INTERMEDIATE'),
             config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_JSON_PAYLOAD_MQTT_PREFIX_INTERMEDIATE'),
             config.get('INTERMEDIATE_TASMOTA', 'TASMOTA_JSON_POWER_MQTT_LABEL_INTERMEDIATE'),
@@ -1188,15 +1208,15 @@ def CreateIntermediatePowermeter(dtu: DTU) -> Powermeter:
             config.getboolean('INTERMEDIATE_TASMOTA', 'TASMOTA_JSON_POWER_CALCULATE_INTERMEDIATE', fallback=False)
         )
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_SHELLY_EM_INTERMEDIATE'):
-        return ShellyEM(shelly_ip, shelly_user, shelly_pass)
+        return ShellyEM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_SHELLY_3EM_INTERMEDIATE'):
-        return Shelly3EM(shelly_ip, shelly_user, shelly_pass)
+        return Shelly3EM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_SHELLY_3EM_PRO_INTERMEDIATE'):
-        return Shelly3EMPro(shelly_ip, shelly_user, shelly_pass)
+        return Shelly3EMPro(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_SHELLY_1PM_INTERMEDIATE'):
-        return Shelly1PM(shelly_ip, shelly_user, shelly_pass)
+        return Shelly1PM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_SHELLY_PLUS_1PM_INTERMEDIATE'):
-        return ShellyPlus1PM(shelly_ip, shelly_user, shelly_pass)
+        return ShellyPlus1PM(shelly_ip, shelly_user, shelly_pass, shelly_emeterindex)
     elif config.getboolean('SELECT_INTERMEDIATE_METER', 'USE_ESPHOME_INTERMEDIATE'):
         return ESPHome(
             config.get('INTERMEDIATE_ESPHOME', 'ESPHOME_IP_INTERMEDIATE'),
@@ -1229,6 +1249,7 @@ def CreateIntermediatePowermeter(dtu: DTU) -> Powermeter:
         return HomeAssistant(
             config.get('INTERMEDIATE_HOMEASSISTANT', 'HA_IP_INTERMEDIATE'),
             config.get('INTERMEDIATE_HOMEASSISTANT', 'HA_PORT_INTERMEDIATE'),
+            config.getboolean('INTERMEDIATE_HOMEASSISTANT', 'HA_HTTPS_INTERMEDIATE', fallback=False),
             config.get('INTERMEDIATE_HOMEASSISTANT', 'HA_ACCESSTOKEN_INTERMEDIATE'),
             config.get('INTERMEDIATE_HOMEASSISTANT', 'HA_CURRENT_POWER_ENTITY_INTERMEDIATE'),
             config.getboolean('INTERMEDIATE_HOMEASSISTANT', 'HA_POWER_CALCULATE_INTERMEDIATE', fallback=False),
@@ -1306,6 +1327,7 @@ def CreateDTU() -> DTU:
 SET_INVERTER_TO_MIN_ON_POWERMETER_ERROR = config.getboolean('COMMON', 'SET_INVERTER_TO_MIN_ON_POWERMETER_ERROR', fallback=False)
 powermeter_target_point = config.getint('CONTROL', 'POWERMETER_TARGET_POINT')
 SERIAL_NUMBER = []
+ENABLED = []
 NAME = []
 TEMPERATURE = []
 HOY_MAX_WATT = []
@@ -1326,6 +1348,7 @@ def CreateDTU() -> DTU:
 HOY_BATTERY_AVERAGE_CNT = []
 for i in range(INVERTER_COUNT):
     SERIAL_NUMBER.append(config.get('INVERTER_' + str(i + 1), 'SERIAL_NUMBER', fallback=''))
+    ENABLED.append(config.getboolean('INVERTER_' + str(i + 1), 'ENABLED', fallback = True))
     NAME.append(str('yet unknown'))
     TEMPERATURE.append(str('--- degC'))
     HOY_MAX_WATT.append(config.getint('INVERTER_' + str(i + 1), 'HOY_MAX_WATT'))
diff --git a/HoymilesZeroExport_Config.ini b/HoymilesZeroExport_Config.ini
index 3a3190e..0cf81a1 100644
--- a/HoymilesZeroExport_Config.ini
+++ b/HoymilesZeroExport_Config.ini
@@ -19,7 +19,7 @@
 # ---------------------------------------------------------------------
 
 [VERSION]
-VERSION = 1.89
+VERSION = 1.91
 
 [SELECT_DTU]
 # --- define your DTU (only one) ---
@@ -54,6 +54,9 @@ OPENDTU_PASS =
 [TASMOTA]
 # --- defines for Tasmota Smartmeter Modul---
 TASMOTA_IP = xxx.xxx.xxx.xxx
+# if you restricted the web login enter your username and password
+TASMOTA_USER = 
+TASMOTA_PASS = 
 # the following three constants describes how to navigate through the Tasmota-JSON. 
 # if you do not know the format of your Tasmota reader, open a browser and put in the following string replacing xxx with the IP address of your Tasmota device: http://xxx.xxx.xxx.xxx/cm?cmnd=status%2010
 # e.g. JSON_Result = {"StatusSNS":{"Time":"2023-02-28T12:49:49","SML":{"total_kwh":15011.575,"curr_w":-71}}}
@@ -75,6 +78,8 @@ SHELLY_IP = xxx.xxx.xxx.xxx
 # if you restricted the web login enter your username and password, for Shelly "Generation 2" devices the username is always "admin" (e.g. Shelly pro 3EM)
 SHELLY_USER =
 SHELLY_PASS =
+# you can specify a specific emeter-index [possible values: 0...1] (if you have a Shelly-EM). If not defined, totalpower is calculated over all inputs.
+EMETER_INDEX =
 
 [SHRDZM]
 # --- defines for SHRDZM Smartmeter Modul ---
@@ -105,6 +110,8 @@ IOBROKER_POWER_OUTPUT_ALIAS = alias.0.Zaehler.Zaehler_CurrentOutputWatt
 # --- defines for HOME ASSISTANT ---
 HA_IP = xxx.xxx.xxx.xxx
 HA_PORT = 8123
+# if you run your HomeAssistant with "https" then define it here
+HA_HTTPS = false
 # you need to create a Long-Lived Access Token in your Home Assistant: click on your profile, then scroll down to the bottom
 HA_ACCESSTOKEN = xxx
 HA_CURRENT_POWER_ENTITY = sensor.dtz541_sml_curr_w
@@ -148,6 +155,9 @@ USE_VZLOGGER_INTERMEDIATE = false
 [INTERMEDIATE_TASMOTA]
 # --- defines for Tasmota Smartmeter Modul---
 TASMOTA_IP_INTERMEDIATE = xxx.xxx.xxx.xxx 
+# if you restricted the web login enter your username and password
+TASMOTA_USER_INTERMEDIATE = 
+TASMOTA_PASS_INTERMEDIATE = 
 # the following three constants describes how to navigate through the Tasmota-JSON
 # e.g. JSON_Result = {"StatusSNS":{"Time":"2023-02-28T12:49:49","SML":{"curr_w":500}}}
 TASMOTA_JSON_STATUS_INTERMEDIATE = StatusSNS
@@ -162,6 +172,8 @@ SHELLY_IP_INTERMEDIATE = xxx.xxx.xxx.xxx
 # if you restricted the web login enter your username and password, for Shelly "Generation 2" devices the username is always "admin" (e.g. Shelly pro 3EM)
 SHELLY_USER_INTERMEDIATE =
 SHELLY_PASS_INTERMEDIATE =
+# you can specify a specific emeter-index [possible values: 0...1] (if you have a Shelly-EM). If not defined, totalpower is calculated over all inputs.
+EMETER_INDEX =
 
 [INTERMEDIATE_ESPHOME]
 ESPHOME_IP_INTERMEDIATE = xxx.xxx.xxx.xxx
@@ -190,6 +202,8 @@ IOBROKER_CURRENT_POWER_ALIAS_INTERMEDIATE = alias.0.Zaehler.Zaehler_SolarCurrent
 # --- defines for HOME ASSISTANT (you need to create a Long-Lived Access Token in your profile) ---
 HA_IP_INTERMEDIATE = xxx.xxx.xxx.xxx
 HA_PORT_INTERMEDIATE = 8123
+# if you run your HomeAssistant with "https" then define it here
+HA_HTTPS_INTERMEDIATE = false
 HA_ACCESSTOKEN_INTERMEDIATE = xxx
 HA_CURRENT_POWER_ENTITY_INTERMEDIATE = sensor.dtz541_sml_curr_w
 
@@ -270,6 +284,8 @@ POWERMETER_MAX_POINT = 0
 [INVERTER_1]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -311,6 +327,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_2]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -352,6 +370,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_3]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -393,6 +413,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_4]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -434,6 +456,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_5]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -475,6 +499,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_6]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -516,6 +542,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_7]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -557,6 +585,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_8]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -598,6 +628,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_9]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -639,6 +671,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_10]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -680,6 +714,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_11]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -721,6 +757,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_12]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -762,6 +800,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_13]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -803,6 +843,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_14]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -844,6 +886,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_15]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
@@ -885,6 +929,8 @@ HOY_BATTERY_AVERAGE_CNT = 1
 [INVERTER_16]
 # serial number of your inverter, if empty it is automatically read out of the API. If you have more than one inverter you should define the serial number here (prevents mix-up).
 SERIAL_NUMBER = 
+# enable (true) / disable (false) this inverter
+ENABLED = true
 # manufacturer power rating of your inverter.
 HOY_INVERTER_WATT = 
 # max. power output of your inverter (e.g. if you have a 1500W Inverter and you only want to output max. 1000W)
diff --git a/README.md b/README.md
index 05d2439..f11bcf3 100644
--- a/README.md
+++ b/README.md
@@ -24,10 +24,10 @@ This script does not use MQTT, it's based on webapi communication.
 - [Ahoy](https://github.com/lumapu/ahoy) - this script is developed with AHOY and therefore i recommend it
 - [OpenDTU](https://github.com/tbnobody/OpenDTU)
 - Hoymiles MI, HM, HMS and HMT-Series Inverter (--> all inverters that are supported by AHOY / OpenDTU)
--   **Note:** The Hoymiles inverts with build-in DTU devices communicating via WiFi, like HMS-xxxxW Series, **are not supported!**
+-   **Note:** The Hoymiles inverters with a build-in DTU, like the HMS-xxxxW Series, **are not supported!**
 
 ### Support of battery powered Hoymiles Inverters
-With Version 1.28 and higher you can set various limits to support battery powered Hoymiles Inverters
+You can set various limits to support battery powered Hoymiles Inverters
 - power-off limit
 - limit reduction if battery voltage drops
 - auto-power-on if battery voltage rises 
@@ -164,4 +164,4 @@ services:
 ## Donate and become a Sponsor
 [![paypal](https://www.paypalobjects.com/en_US/i/btn/btn_donate_LG.gif)](https://paypal.me/TobiasWKraft/5)
 
-Please support me if you like this project by spending me a coffee instead of giving away your electricity.
+Please support me if you like this project by spending me a coffee instead of giving away your electricity.
\ No newline at end of file
diff --git a/update.sh b/update.sh
index d67e456..42e2749 100644
--- a/update.sh
+++ b/update.sh
@@ -1,19 +1,34 @@
 #!/bin/bash
-SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+# Check if an argument is provided
+if [ $# -gt 1 ]; then
+  echo "Error: Too many arguments"
+elif [ $# -eq 1 ]; then
+  # Use custom URL if provided
+  BRANCH="$1"
+else
+  # Default URL if no argument provided
+  BRANCH="main"
+fi
+BASE_URL="https://github.com/reserve85/HoymilesZeroExport/archive/refs/heads/"
+DOWNLOAD_URL="$BASE_URL$BRANCH.zip"
+
+# Change directory to the script's directory
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
 
-echo "start update of HoymilesZeroExport"
+echo "Start update of HoymilesZeroExport"
 
-wget https://github.com/reserve85/HoymilesZeroExport/archive/refs/heads/main.zip
-unzip main.zip
-rm main.zip
+# Download and unzip the file
+wget "$DOWNLOAD_URL" -O $BRANCH.zip
+unzip $BRANCH.zip
+rm $BRANCH.zip
 
 if [ $(dpkg-query -W -f='${Status}' rsync 2>/dev/null | grep -c "ok installed") -eq 0 ];
 then
   apt-get install rsync;
 fi
 
-rsync -a HoymilesZeroExport-main/ ./
-rm -r HoymilesZeroExport-main/
+rsync -a HoymilesZeroExport-$BRANCH/ ./
+rm -r HoymilesZeroExport-$BRANCH/
 
 chmod +x $SCRIPT_DIR/install.sh
 chmod +x $SCRIPT_DIR/HoymilesZeroExport.py