combine multiple selection to a single call to onSelectionChanged

[wholeinsoul]

How can I combine multiple selections to a single call (without adding an extra button) to onSelectionChanged ? I need to allow user to make multiple selection but need to take one single action based upon the selections.

I tried using ng-model-options={'updateOn': 'default blur', debounce: {'default': 1000 , 'blur': 0}}, but this did not work.

Any pointers ?

Thanks.