Hi Rick,
This is exactly what we are looking for.
Would you be able to share the steps of how you inserted the video thumbnail in the help page and how did you edit the properties the URL, attributes, autoplay, etc?
Can we resize the video thumbnail or is there a default size?
We have few videos on vimeo and few on brainshark as well.
ello again
Normally when you insert a video from Vimeo, it's pretty simple. You just click the little envelope to share, then copy the video URL. Then in RoboHelp, you click the Insert tab, then Multimedia, then choose Web URL and you paste the copied URL into the field.
Now, there are some videos where that doesn't work and I'm not exactly sure why. For example, I tried the "Staff Pick" video I saw when I opened my Vimeo page and as you can see below, something has gone wrong.

But if I grab the video URL from the embed code on Vimeo and paste it, things seem fine.

Now here is what Vimeo supplies as the basic link:
https://vimeo.com/giovannipautran/paloma
And here is what the embed code looks like:

Note that I copied the highlighted bit from the embed code, then pasted that into the RoboHelp dialog.
Now you will also note that there is a button on the lower left that is labeled "Appearance". I clicked that and see this:

You might initially enable and complete the Preferred width field with 500px, then click the OK button followed by the next OK button. This should cause the video area to appear inside the RoboHelp topic and it should then have sizing handles you can use to just click and drag to adjust the size to your liking.

Hopefully this helps a bit. Just shout at me if you need more than this.
Cheers... Rick 