My Goal:
A form field (in MS Access) that is has some drop down choices. If the wanted value isn't in the lookup table, the user should be able to add it by typing it in.
Let's suppose the lookup table has rows: A, B, C, D. The user wants "E" which doesn't exist yet. Ideally they'd "override" and type in "E", which would then be added to the lookup table for future entries.
My google-fu has failed on this. Is there a term for this that I should be using? What are some good approaches? (I've been playing with combo-box and its wizard so far).
Thank you for any suggestions!