Yeah, as soon as I saw the Key Input option I knew you were using QInput. I am very familiar with Quxios' plugins, that's why I gave myself the title of "Resident Qplugins Expert" on Drifty's Discord. I'm always open to helping people figure out how to use Quxios' plugins.
QABS does have a steeper learning curve than most of the other battle systems out for MV (I recently figured out how to make a multi-stage boss, which is quite exciting). If you want, feel free to ping me on Drifty's Discord and I'd be happy to help you.