I was actually thinking about this just the other day. Making the right-click menu for the thumbnail browser customizable would be a great addition. Being able to hide and move tags around would help keep the menu cleaner and more easily accessible for the owner of the library but also for the users who might not be familiar with which tags are used for what. Me, personally, I have about 4-5 different tags containing dates and years and not all of them are used in the thumbnail browser. I know which of those tags are used for what but other people using my library does not.