I'm playing with mouse and keyboard and i read in the rules that you may not bind analog stick positions to a single button press but in keyboard and mouse the input por changing the spells is moving the mscrollwheel up so i was wondering if changing the mscrollwheel up to a lateral mouse button is allowed (sorry if my english is bad)

Yes, you can change, my friend. Good luck on the runs 👍

thank you

Yes, such a change is not a problem.