I just let them wander and do their thing until they’re happy. Hide, live on the glass, etc. They settle down after a while.
I would caution against adjusting lights to new livestock, as you’re ultimately stressing the entire system, vs just the new addition.
If you’re worried about a new coral you can start them off low, and raise them up in the tank over time.
Anemones have feet for a reason, it’s so they can move if they feel the need.
That’s a gorgeous bubble tip!
I’m a real sucker for them myself.
Best of luck!