Answering my own question. When enabled, this automatically applies
parent or child tags (or both) to the selected photo.
On Fri, Jun 28, 2019 at 2:11 PM Dmitri Popov <
[hidden email]> wrote:
>
> If you right-click on a tag in the Tags sidebar, you'll see the Toggle
> Auto sub-menu. What does it do?
>
> Thanks,
> Dmitri