I’m looking for different ideas on how to allow users to select items from a list of possible options and load into a list of selected items. Currently I am using 2 listboxes side-by-side and this works fairly well, users can select individual items from one side and it will move over to the other and they can also move all the items from one to the other. When a list has many items in it, over 100, however, it can be difficult to find the exact item you want if it is in the middle of the list. What are some alternatives to the listbox approach or creative ways to find the one item you want in a list while still allowing the user to select multiple items?