Trim video, 'Add animation' and 'change picture' from clipboard on right click and Design suggestions are most awaited.
Hi there! Thanks for sending us feedback. In the latest versions of PowerPoint we now support all of these features (trimming video, adding animation to a video, and selecting an image as the poster for a video).
You can find all these new features under the “Video Format” tab when you select a video that you added to a slide.
I think this is now available, at least in the Insider builds.
Elliot Herman commented
Cutting tool for movies to shorten them
make it work as in any regular computer pleaseeee I have to use a different computer and then pass it on to my mac... and still some things do not work :(