Log: add any commit from the Log to the list of commits in Branches panel

When I open Log by double-clicking on a commit in the Journal, this commit appears under Commits node in the Branches panel. Thus I can use it as a root in the commits tree. I want to be able to conveniently add any commit from the log to this list in Commits node. So that I can use any commit as a root in the commit tree.

This would be very helpful in the following scenario. I am digging down the history, find relevant commit, and then make it the root of the tree to simplify further research.