One idea, more possibility  -  under the "object & animations"  > "add mask" function, is editable the slide options (and the style also)    i mean "slide in slide"  function... - in the "project options" > screen > bacground > can be add a video (for background) - if in the project is the "display slides in random order" enabled, the slides are played not with the                 "default   slide durations" but the duration which was paired with the given image - in one project can be added one more "timeline" ( i mean, if i have in the main timeline added a video        in the 2nd time line can i add some pictures in a specified minutes  (works similarly as the timeline with   audio, only in this case, replace the audio with video) - make slide style from existing slide ( if the current slide is ready, with one click can be saved as "slide style" Sorry for my bad english, i just will that this application  is better, as before