Run scheduled snapshot manually

Hi,
I have scheduled snapshot to dropbox.
Is there a way to run the same snapshot manually?
Like Snapshot > Snapshots > Available snapshots > ... > Regenerate

But I think Regenerate is something else. I want it run manually without any settings - only click "run now" (like I can click "regenerate" or "restore").

This feature is common to other backup plugins.

Thanks,
Jiri