unique values in options

[yundlu]

Hi Everyone, this is my first time using angular bootstrap multiselect and am wondering if there's a way to show only unique values in the options dropdown. For example I'm putting this multiselect on a table with a column called Work Location. In some cases, there are multiple entries with the same work location and it shows up multiple times in the dropdown. Is there a way to just show that option once, but when chosen, selects all the entries that have that work location? Thanks!