Is there a better way to select a good thumbnail?

When filling out the editing template one has his choice of about 12 thumbnails to select from. However, especially on a longer clip, the thumbnails shown are not representative. For example, I have a buck deer walking and then near the end of the clip he charges and rams another deer. The charge/ramming is what I want for my thumbnail. Is there any way to add a thumbnail to show the action I want to show?

I think not.
Gorgeous footage GreatWildlifeImages

No, unfortunately you can only select the ones given. It would be nice to be able to upload a thumbnail like Vimeo or YouTube. But that isn't in the cards.

Wildshots: Thanks!

Good idea. It would be great if we could choose like we do on Vimeo.