After testing a bunch of CustomKeys.txt i finally found one that binds Hero and Unit abilities to QWERTY. There are also files for AZERTY, and QWERTZ. the site i got it from was
www.hiveworkshop. com/threads/customkeys-txt.253829/ (remove space from . com).
Edit: After playing some custom games, yes the build hotkeys are changed to:
qwer
asdf
zxc