If you're using the Lazy Newb Pack, type "autolabor enable" into the dfhack window, you'll never have to think about it again. If you need to restrict jobs to the experts, there are easier ways to do it. For example, you create a crafting station that only your expert stonecrafters can use, then send all of your stonecrafting jobs to that single workstation.

Endlessly fiddling with Dwarf Therapist is not a rewarding use of anyone's time.

I think they're adding a similar feature to the premium release.