I'm using autocomplete to assist with data entry on two input boxes on a form; the idea being if the data doesn't already exist in the linked database, new entries could be free typed.

One data entry box is one line and this works fine. The other is several lines but if I increase the number of lines to >1, autocomplete becomes unavailable (unticked).

I've had to concatenate two columns in my database and use that to populate box 1 and cut and paste it into box 2 for now.

Is there a more elegant way to get this to work? Ideally using autocomplete over >1 line data entry box.