I looked through the controls menu and there was no key bind for using the selected force power. i have force push equipped but no matter what buttons i push i can't use it

I don't remember what it is off the top of my head, but you can change it in the vanilla controls menu. I think the default may be C or X or something around there.

Ive figured it out, the key bind option is labeled as "use robe force power" even though I'm not using a version that uses robes for force powers. I think the key bind label is outdated is all.