How do I add a filter to a checkbox list in a content editing form I have a taxonomy select field within a node form (7). I've chosen checkboxes and it is hard to scan them. I'd like to be able to add a filter so that the user can enter text to limit the number of choices in the list. How?
You can change the Reference method option in your Field settings to Views: Filter by an entity reference view.
You first have to build the Views listing taxonomy terms, Display of type Entity Reference. Add the exposed filter there for the term name. Save the View.
Then you'll be able to select that ER Views Display in your Field settings.