Possibility to change controls

I would like to change controls like : ALT ( camera rotation)

I’m wondering if I can change de “alt” config to use the GRID control mode and “ALT + W -A - S -D” to move the camera. But when I press “alt” and move the mouse my camera is moving. I wish to remove the mouse camera rotation to achieve this.

Do anybody knows how to do it ?

Any more configs possible combination of hotkeys ? (MAJ + key)