Ability to add\append labels to multiple instances\compute nodes simultaneously the GUI

Headline:
Ability to add\append labels to multiple instances\compute nodes simultaneously the GUI.


Description:
I would like to see an item in the action menu to “add a Label” this way you would select multiple servers from the Instance or Compute screens. Bonus points if you could append it instead of overwriting the entire value as the CLI command does. Probably a way to submit with an API call and an XML file, but my average consumers\users are not going to have access to either of those methods to add.


Example/Use case(s):
I want to add a label for all Domain Controllers. Knowing they follow the naming convention of XXXADDC## I search the Instances select all, then from the Actions menu I select an option to Add Label" for all that I have selected. As said before, bonus if it appends to what exists currently.