I am using Expert mode, so that I have control over the panels, I suppose you are in the newbie mode?
You cannot see the Timing properties for a slide, when an object is selected (same as in previous versions). So be sure that you don't have anything selected on the slide. If you do not see the Timing Properties, you can open the panel from the Window Menu, same group as Timeline. If you are on Mac, a user told me that he doesn't see that menu, cannot check because I'm on Windows. See this screenshot of the Timing accordion, with the dropdown list for slide transitions
As for cpvc: those are totally different projects, pure video. Those transitions are between video clips, cannot be compared with the transitions between static slides.