In order to make use of the tag features propperly, it is necessary to be able to assign/rename tags for multiple entries at once in some kind of batch mode. Also, it is necessary to rename/edit specific tags resulting in tag modification for all corresponding entries. Both features are missing. The tag should work like a "context", i.e. have a menu on the navigation pane so that they can easily be edited and assigne by drag and drop and selected for displaying the corresponding tasks. How come this is not implemented yet? Last entry I found relating to this was in 2013?!