I dont Know where to put this request for help

I need a way to pass the 1k Mana Limit on Abilitys and hopefully make it realistic not just add a trigger to subtract enuff i want it to be able to display it ive looked in constants and interface but i couldnt find it i mighta overlooked it thou

select the mana cost field on the ability, then hold down "shift" and double click it, that allow you insert any number below the max values to it (up to 9999 mana)

thanks 1k is too low for the kinda map im makin