There are two methods in dolphin to tag a file: - using the context menu - using the "Information" panel (F11) The information panel opens a dialog where multiple tags can be selected, and new ones be added. The context menu also opens a dialog when "Assign tags..." -> "Create new..." is selected. The latter could be changed to show the same dialog as the information panel. As QMenu immediately closes when clicked it is not possible to directly select/unselect multiple tags. Until Qt allows to keep the menu open an intermediate dialog is needed.
QMenu bug: https://bugreports.qt.io/browse/QTBUG-79751 https://bugreports.qt.io/browse/QTBUG-6635
The "Create new..." in both the context menu dialog and the information panel dialog should allow to create multiple new tags without closing the dialog: https://bugs.kde.org/show_bug.cgi?id=311204
*** Bug 426940 has been marked as a duplicate of this bug. ***
There is also the option of dragging-and-copying a collection of files into 'Tags' folders. It is a quick and effective way of tagging collections of images downloaded from a camera without needing to use to the context menu (for existing tags. If you want a set up a new tag, you do need the context menu)
Apologies... The above comment was meant for 419990
*** Bug 450006 has been marked as a duplicate of this bug. ***
(In reply to Nicolas Fella from comment #7) > *** Bug 450006 has been marked as a duplicate of this bug. *** For 450006, a workround was to open the information panel with an F11 and edit the tags through the dialog there: https://bugs.kde.org/show_bug.cgi?id=450006#c5