Is it possible to include both the optional fields and the primary field into the autocomplete field after selection and/or add both primary and optional fields into the hidden field? it's working fine i.e. its showing both fields, but only the primary field is written to the autocomplete field after selection.

Hello,
No, this is not possible.

and I can't have two autocompletes on one page either?

The only way I can think to get around this to pop both fields into a one column temp table? has anyone else a work around, I need both fields to show on the form.