allow-clear on ui-select with multiple not working

[plaetzchen79]

With the option "allow-clear" in ui-select-match together with the option "multiple" on ui-select i can
remove each single item with the "X"-button. That works fine.

But is there a way to add a clear button ("X") for the whole ui-select so that I can remove all items by one click?

Or am I missing something?

Thank you & Greetings

Angular: 1.6

UI-Select:

Bootstrap/Select2/Selectize CSS (if applicable):

[Jefiozie]

As far as I know i have not yet seen a option like this.