newbie question about navigation with page-up and page-down keys

Hi, I found that the page-up and the page-down keys work in Presenter and in Engage.

Unfortunately it seems that the page-down key (next key)  does not work when the user reaches the last slide within an engage action.

I think the users would expect to get to the next presenter-slide when they reach the last engage slide.

I wonder if it is possible to make engage work this way or if it is possible to disable key-navigation at all.

Thanks

Fred