Comment 2 for bug 605310

I like the idea. For example, the presentation author could bind up to 10 "special" ROIs to Alt+# so that he can get back to them anytime during presentation (for example if he need to deviate from his speech to answer a question, and a particular ROI could help him).
Another improvement we could add is that pressing Alt+# again (the same # of course), would bring the presentation back to the previous ROI.