Betrayer: Add hotkeys 5,6,7,8,9 & 0 to change UI depth

I default to 0.995 which is pretty far into the scene, but feels more
comfortable to look to the UI from the scene and back again than lower values.
1.0 is too far and feels behind everything (because by definition it is).

I recognise that others may not be used to the UI being so far back, so I've
added a bunch of presets that other people can use.

Betrayer/dx9settings.ini

@@ -1,7 +1,7 @@
 [General]
 UseRenderedShaders = true
 DumpAll = false
-PresetsKeysList = 1;
+PresetsKeysList = 1;2;3;4;5;6;7;
 DefVSConst1 = 200
 DefPSConst1 = 200
 // These are from Eqzitara's fix:
@@ -26,23 +26,70 @@ Type = 2
 
 
 // Preset 0 is activated while the right mouse button is held down. It lowers
-// the convergence for easier aiming.
+// the convergence for easier aiming. Separation & convergence can be modified
+// in game and saved by holding RMB while adjusting and pressing F7 to save
+// (still holding RMB)
 [PRES0]
 UseSepSettings = true
 SaveSepSettings = true
 Convergence = 0x409faaf3
 //Separation = 0x42c80000
-Const1 = 0x3f800000
 
 
 // Preset 1 is the default and is re-activated when the right mouse button is
-// released. It sets my preferred convergence, separation and UI depth value
-// (Const1).  Separation & convergence can be modified in game and saved with
-// F7 (which will remove these comments).
+// released. Separation & convergence can be modified in game and saved with F7
 [PRES1]
 UseSepSettings = true
 SaveSepSettings = true
 //Convergence = 0x41000000
 //Separation = 0x42c80000
+UseByDef = true
+
+// Key 5 sets UI depth to 0 (screen depth)
+[KEY2]
+Key = 53
+Presets = 2;
+Type = 1
+[PRES2]
+Const1 = 0x00000000
+
+// Key 6 sets UI depth to 0.25
+[KEY3]
+Key = 54
+Presets = 3;
+Type = 1
+[PRES3]
+Const1 = 0x3e800000
+
+// Key 7 sets UI depth to 0.5
+[KEY4]
+Key = 55
+Presets = 4;
+Type = 1
+[PRES4]
+Const1 = 0x3f000000
+
+// Key 8 sets UI depth to 0.75
+[KEY5]
+Key = 56
+Presets = 5;
+Type = 1
+[PRES5]
+Const1 = 0x3f400000
+
+// Key 9 sets UI depth to 0.95
+[KEY6]
+Key = 57
+Presets = 6;
+Type = 1
+[PRES6]
+Const1 = 0x3f733333
+
+// Key 0 sets UI to depth 0.995 (my preferred value & default)
+[KEY7]
+Key = 48
+Presets = 7;
+Type = 1
+[PRES7]
 Const1 = 0x3f7eb852
 UseByDef = true