Multiselect dropdowns?

You can group your checkboxes using an “optgroup” in your values…for example:

West::optgroup,Washington::WA,Oregon::OR,Central::optgroup,Colorado::CO,Arizona::AZ

Documentation: Defining Participants Database Fields

Great. Thank you. How about the multiselect part? Is that possible?

Works the same for a multiselect.

I’m sorry. No, I mean you’ve got multiselect checkboxes as an option, but no multiselect dropdowns. How can I make the dropdowns multiselect?

I see, no, there current;y isn’t a way to do that.