Overall you are MUCH better off forgetting Sonar shortcuts and getting used to Studio One's. You have done the right thing. After a while you will become super proficient with the Studio One shortcuts and you won't even remember Sonar shortcuts. In the end the Studio One shortcuts have been carefully designed for Studio One and they are best left alone.
Especially if you get one of the Editors Keys QWERTY keyboards for Studio One which I have and they are great.