DAM - Remove All Tags

Currently, if I select a batch of images in the Digital Asset Manager to append a tag they all share in common, I have to manually delete each tag that shows up in the editing window in order to avoid all those tags appending to each image. Would be much more efficient to be able to have a "Clear" or "Remove" button.

Additionally, there should be the option to "Clear" or "Remove" or "Delete" all tags from the images themselves, not just the editing window.