Can I edit a version?
No. Versions are based on pre-existing videos that can have been previously shared with other customers or stakeholders.
Why can’t I find my colleague on the reva users list?
The user is either not registered in reva or has a private profile. Reach out to him and encourage him to make the profile public (profile settings) so you can all benefit from the collaboration engine capabilities
How can I find a video from a colleague of mine?
If the video is public, it will show up on the public feed. Just use search (by his name for example) or sort capabilities to narrow down the option in the public feed