Yep, there you go, hope its intuitive for you:
https://www.dropbox.com/s/nku14h46b8fc7hy/DCS%20Viggen.pr0?dl=0
Most of the buttons are customized, because they weren't set. For the trigger unsafe option you need to copy this:
{down = 3300, up = 3300, value_down = 1.0, value_up = 0.0, cockpit_device_id = devices.WEAPON_SYSTEM, name = 'Trigger safety bracket (hold) temp', category = 'Weapons'},
{down = 3300, value_down = 1.0, cockpit_device_id = devices.WEAPON_SYSTEM, name = 'Trigger safety bracket ARM temp', category = 'Weapons'},
{down = 3300, value_down = 0.0, cockpit_device_id = devices.WEAPON_SYSTEM, name = 'Trigger safety bracket SAFE temp', category = 'Weapons'},
In the default.lua at DCS Folder\Mods\aircraft\AJS37\Input\keyboard
Happy hunting