Here are the basic GCode start and end commands for the MOD-t ... check the other configuration files for more information.
M42 P10 S1 ; Turn on LED
G21 ; set units to millimeters
G90 ; use absolute coordinates
M82 ; use absolute distances for extrusion
M204 S500
G0 Z1 F300 ; Make sure main Z drop isn’t too fast
;Move to side and put down a line to prime the nozzle
G1 X64.332 Y24.938 F9000
G1 Z0.315 F300
G92 E0
G1 X74.332 Y-44.938 E3.9642 F2520
G1 X74.964 Y-44.938 E4.0001
G1 X74.964 Y24.938 E7.9643
G1 X74.532 Y24.938 E7.9888
G1 X74.332 Y24.938 F2520
G1 X73.876 Y25.394 F9000
G92 E0
G1 X73.876 Y-45.394 E4.0159 F1680
G1 X75.42 Y-45.394 E4.1035
G1 X75.42 Y25.394 E8.1195
G1 X74.076 Y25.394 E8.1957
G1 X73.876 Y25.394 F1680
G1 X73.876 Y23.394 F1680
G0 Z1 F300
G0 X0 Y0 F5000
G92 E0
G92 E0
G0 Z130 F300; Go high
G0 X77.7 Y52.3 F3000
G92 X0 Y0 ; Change Offset back to center
G0 X0 Y50 F3000; Go front and center
M104 S0 ; Turn off temperature
M107 ; Turn on fan
M84 ; Disable motors
Original Source: http://support.newmatter.com/customer/portal/questions/14427572-how-do-change-print-settings-like-infill-support-etc-