I'm really into this Axioloti Core man! do I need to be a wizard to program the patch? I'm an absolute noob to this.
Can you program it so that you can for example use the fader for the high pass filter (for a buildup progression) and then kill the effect with a button?
You totally can program the HP filter the way you proposed! I sometimes use the fader in a similar way, but instead of using a killswitch I just flick the fader back down to zero. Now I'm thinking about the cool stutter effects you could create with a killswitch.
The GUI works kinda like a modular synth. You can go very deep with the programming, but it's also fairly intuitive and you can build simple patches by wiring modules together in a very on-the-surface type way. I learned how to use it and designed my patch in about 3-4 days of tinkering with it. I used the Axoloti forums as a resource for advice and some user-made objects.
Here's a screenshot
of the patch I'm using. The signal chain is duplicated for left and right signal. You can see all the MIDI assignments in the bottom left corner. Very powerful sound shaping tools, and this is pretty tame compared to what others have been accomplishing with the Axoloti!