How to make mods payable in DCS World 1.2.4
I will update mods gradually, this instructions for those who doesn't want to wait

AH-1W used as example, the same applies to all other mods

1. STEP 1 - no changes
2. STEP 2 - copy only Mod folder (dont copy Config), but without /Mods/aircrafts/ah-1w/Cockpit folder inside
3. STEP 3 - no changes

Manually change these files
1. CobraH.lua inside /Mods/aircrafts/AH-1W
add this section just below Categories 			= {"{828CEADE-3F1D-40aa-93CE-8CDB73FE2710}", "Helicopter",},

ViewSettings = {
	Cockpit = {
	[1] = {-- player slot 1
		CockpitLocalPoint      = {4.188000,0.390000,0.000000}, 
		CameraViewAngleLimits  = {20.000000,120.000000},
		CameraAngleRestriction = {false,60.000000,0.400000},
		CameraAngleLimits      = {140.000000,-65.000000,90.000000},
		EyePoint               = {0.090000,0.000000,0.000000},
		limits_6DOF            = {x = {-0.020000,0.350000},y ={-0.150000,0.165000},z = {-0.170000,0.170000},roll = 90.000000},
	},
	}, -- Cockpit 
	Chase = {
		LocalPoint      = {-0.512000,2.790000,0.000000},
		AnglesDefault   = {180.000000,-8.000000},
	}, -- Chase 
	Arcade = {
		LocalPoint      = {-16.812000,5.390000,0.000000},
		AnglesDefault   = {0.000000,-8.000000},
	}, -- Arcade 
},	   

for Mi-24, Mi-28 use this 
CockpitLocalPoint      = {5.188000,0.390000,0.000000},

2. dcs world\Config\Weapons\aircraft_gun_mounts.lua

find this line gun_mount_templates["M_197"] = 

change rates to 
rates = {1500,700},

for other choppers as in file STEP2\Config\Weapons\aircraft_gun_mounts.lua that comes with a mod

gun_mount_templates["YakB_12_7"] - Mi-24
gun_mount_templates["M_230"] - Apache

3. dcs world\Mods\aircrafts\AH-1W\Cockpit\Scripts\Devices_specs\GunTurret.lua

copy 
limits_azimuth   = {math.rad(-110.0),math.rad(110.0)}
limits_elevation = {math.rad(-50.0) ,math.rad(11.0)}

instead of 
limits_azimuth   = {math.rad(-2.5),math.rad(9)}
limits_elevation = {math.rad(-37) ,math.rad(3.5)}

for other choppers as in file \STEP2\Mods\aircrafts\Heliname\Cockpit\Scripts\Devices_specs\GunTurret.lua that comes with a mod

4. To make shturms on Mi-24,28 work open \DCS World\Config\Weapons\missiles_data.lua
find  
Name = AT_6, --9M114 Shturm
        Escort = 1,
        Head_Type = 6,
		
and change Head_Type to Head_Type = 4,