OneClick extension installer

Hello guys,
I write in the developer area because I think it is the most suitable.
I apologize in case my question is OT.
I’m new to the forum and I think I’ve found the right place to get a certain answer. Does Is it possible to create an extension that sets the proxy to be used simply by loading this extension through a button cick in a reserved area of ​​a website?
if the answer to this question is yes, and there would be someone willing to be able to make it for me I would be delighted to be able to make this extension obviously paying