Replacing assistant

Hello, I have more than one snips running with the same assistant. Now I’d like to change the assistant on one of it.
Did anyone know a way to replace an assistant (i.e. proj_xy…) by an anotherone (i.e. proj_zx…)?

Many Thanks for helping!

sam install assistant -i proj_xxxxx

Thank You very much, works perfect! First time I tryed this, I must have made any mistake.