Are you looking for some kind of automatic Reveal Commit? I guess this can become confusing if the graph constantly changes when you are changing selection (or just stepping through Branches view, using keyboard). Also, this can become really expensive when the selected branch is not yet visible.

No, I am looking for inverse Reveal Commit (Reveal Branch?).

e.g. if branch label is clicked ( or head commit of the branch is stepped onto / clicked ) in the Commits pane, the branch is revealed in the Branches pane.

The goal is to make branches managing more easy while working on log. For example, not to search the branch in Branches pane if need to fix a typo in the branch name.

What if a multiple branches or tags point to the selected commit?