That particular "Weapon_Blackrock_Boost_Combo" thing, and other elemental boost on weapons, (ie. Weapon_Large_FireDamage_ModKnife, etc.) I added them manually as string text to Permboost/Weapon/Boosts, when the tab is refreshed, the editor generated a field table in Permboost tab, exactly the same as in Mods tab. I don't know is this on purpose or not, because in my case it didn't work.
