can a key or button on a-500pro be mapped so it can"push" the bank scroll button on 3rd pa

Hi, I was wondering if a button on the a-500pro could be mapped to a 3rd party synth or any synth really so I could scroll through presets without having to have my hand on my mouse constantly clicking on the button.With thousands upon thousands of presets and hundreds of synths it gets exhausting, interrupts my creative flow and since I have Lyme disease from a deer tick which causes joint pain it hurts.  Is this possible?  I would really appreciate any help from anyone,I cannot find anything on the internet that mentions this.   Thanks everyone!