Hey! Thanks for the feedback. I've actually just uploaded an update today that introduces State-based progression, so you should be able to use passives through Materia now without needing to rely on permanent skill learning! You can download it now!
As for the donation, that is incredibly generous of you, but you’ve already paid for the plugin, so please don't feel obligated! I really appreciate the offer. If you’re insistent, I do accept support via PayPal:
@paradajz
Thank you very much!