Three Questions

1. On the home page can I make the portfolio thumbnails either scroll intermittently or change randomly? Or at least select the ones I want to be featured?

2. How does one upload a MP4 video for the background videos (fullscreen). I see the empty slot for it in the back-end editor but haven’t figured out how to upload it correctly.

3. Is the only way to make full screen videos for the revolution slider HTML5? Any tips from anyone on HTML5 tutorial videos would be awesome!

Thanks in advance!