Possible for regular units to use powerups?

Is it possible for regular units (grunts, peons, knights, etc) to use powerups with any kind of inventory upgrade. Specifically, they need to use the "Bundle of Lumber", "Gold Coins" and "Glyph of Omniscience" powerups. I have tried everything I can think of.

Did you tryed to use Inventory (Hero) with 0 item slots?

You can't set it to 0, and even then regular units can't use powerups.

if you look at the inventory ability, there's a boolean there called "can use items" or something along those lines. For a unit to use ANY item, tomes, powerups, usables, ANYTHING, this MUST be set to true.

The problem is that if a unit with hero inventory picks up a tome that increases agility, strength or intellegence, the game WILL crash. So if you do that make sure such items CANNOT drop.

Thanks very much phoenix. +rep