Update Annotations in Articulate Presenter 9

Is there a way to update the annotations in an easier method than having to re-record the entire slide?  For example, I used the rectangle to highlight an area, and was using the yellow color - my focus group felt it was hard to see.  Now I have to redo all of the annotations on the slide with a new color rectangle?  Is there a better way to do this - I hope so!?

Also what if you want to remove one of the 7 annotations that you have on your slide, is there a way to edit the timing or individual annotations rather than rebuilding the slide.

Thanks for the help.