Please make a ticket for this, it needs to be fixed and has been going on since beta release (see attached picture to help explain error).
On all search option displays (quick search, search, advanced search), in making a multi-selector option, the ability to make that multi-selector to display as checkbox is broke. The multi-selector always displays as a drop down list.
Here is a test set. The top part of the picture shows the multi-selector using the select(box) option under advanced options. It properly allows users to add more options.
The bottom part of the picture shows what happens when you select the multi-selector to display as checkboxes, it does not. Instead you have a drop down menu where you can only select 1 option and it does not give the ability to add other options. This needs to be fixed so the check boxes displays.
