Repair Skill working off mana instead of gold?

I have made the repair skill a hero ability and would like for it to drain mana while the hero is repairing a building versus draining money and lumber.

Any help on this would be much appreciated.

Well, gold drain is kind of hardcoded into the repair spell, so, in order to get the same effect for mana, you should try basing the spell on heal and give it the icons, allowed targets, range and effects of the repair ability. This should probably work, unless the heal ability has it hard-coded that it cannot target buildings (some spells have that).

As mentioned above i wud make a custom heal spell but give it the 'Stats- Target Allowed' to 'Mechanical', this would then heal the buildings and any other mechanical unit.

I havent tested it out so im not 100% sure, but in theory it should work.

Shavar

Well no luck. After giving the heal spell to target mechanical units it still does not work. I apprecaite the help though.

make the target buildings, allied...

the buildings have to be damaged...