Hi, 

You have the option to allow extended view of dropdown with the size Tab. Good idea would be to add to it an option to allow selection of multiple list entities if you select the size tab.

Also you can specify the maximum amount of list entities that can be selected (maybe use 10,4; 10 to specify the size of the dropdown and 4 as maximum number of list items).

We think this would be a good feature specially for large lists.

Thank you.