this is a cheatmod, to play with this cheatmod you need to use key-combinations. with thses combinations you can: add population, spawn nits, change weather, change army, change side, delete units (units, tanks, buildings, houses, points,...) instand build, instand recharge, instant upgrade, etc you only can play this mod in SP games, because relic is cheat-free, but you can use it in skirmishes and missions have fun =)
if you press shift+F3 then you spawn every unit of your selected faction
i see it works on tales of valor
It actually works on OF too. Heck, it can even spawn ToV units in OF.