Appending in dropdown box
Is there a method to append drop down or Pop Up Menu box entries within a single field. I'd like to allow the user to type, and have the database autofill from a value list, but to have the data append rather than replace (unless, of course, they intent to delete the data). Right now, if I enter data, I can get the auto lookup if I hit enter after each piece of data, but then if I click the drop down or pop up (I'm playing with both right now), it replaces the old data unless I am VERY careful to go to the end of the data entry specifically....which, of course, users won't do.
Ultimately, my goal is to allow autofill from a list, AND/OR new entries that aren't on the list, but to have the data displayed as either "Selection1, Selection2, Selection 3....etc" or in 2 or 3 columns.
Anything do-able there?