linkt to a php code snippet

Hi

I like your plugin

However, I am looking for a way to add a link to a php snippet.
I want the ability to click on the avatar and activate the snippet.

Actually the snippet I am trying to do is to change the user role from one to another (for example to change user from a “subscriber” to an “author”)

can this be done in your plugin ?!?!?

I hope you can help