Display tags in the tagging panel in a tree
Tags in the tagging panel (for applying tags to images) aren't displayed in a tree but rather with the pipe symbol still there. It would be nicer to display them in a tree, similar to the collect images panel. Now when creating new tags, you need to write the whole tag (including all levels) instead of adding a tag at a specific level and writing only the name for that tag. Besides the list of tags in the tagging panel can get very long depending on the number of tags, so being able to collapse levels would make the interface for tagging much more clear.