One of the best things I ever did was map the thumb side button of my mouse to be arrow tool/last tool toggle!
Then ctrl + thumb button to tool settings!
Seriously handy!
I also have a few others but they are more me specific than functional really.
I have a multibutton Logitech laser mouse. The extra button that I use the most is the one I assigned to Expose, as it lets me quickly switch between working ArchiCAD windows.
AC 28 USA and earlier • macOS Sequoia 15.3.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB