Double click on mouse

[Trajce Playz]

So,i have a pretty much standard RGB mouse (from Genesis),and it also has a dpi changer,and two side buttons. Other than that it's a pretty classic mouse and nothing much around of it.
But,I've seen mouses which on the LMB had a small key that actually acts as a double click,so if you click that it basically does a double click.
You probably get what im trying to point out,but i want to know if it's possible to have one of my side buttons do that.
I have found a remapping app called Key Remapper 1.11, I've looked into it and as far as i saw,it does not have that option.
Any way this can be done,or impossible???

[zassou]

changing the microswitches, it's fairly simple and cheap, and only require a few soldering tools (especially desoldering pump). for the being you should get another mouse for backup and watch a video about it. you can keep using a mouse for years if you can turn it into a hobby.