Wizzard skills - how to disable, how to set 2 hydras.

Hey guys. I wont use spell on right mouse button because im always out of energy. Is that possible?

Second question - is that possible to set DB for using 2 hydras?? Because i have wand (+1 hydra) and i would like to use it :P.

Wizzard skills - how to disable, how to set 2 hydras.