Small rotations and you’ll probably be fine not moving the controls, larger rotations might need you to re-drill the peg hole.
Levers just rotate as everyone should be adjusting these to get a good reach angle so just undo the bolts and line them back up after you shift the bars.
New bike day here.
What's the deal with rotating the handlebars, I want them to be more forward/upright.
I guess I need to rotate all the controls back after?