UI "Sub" List Box

[Enigma 78]

Imagine a classified ads site.

Making a ad poster then with the UI Listbox you can select the main categories.

How to be able to select sub categories easily from the UI?

 

Or does someone has already an easy workaround for that?

 

If not, this might be an idea (feature request).

[IRobot 43]

You could scrape the main categories, and add them to a UI list box.

[Enigma 78]

You could scrape the main categories, and add them to a UI list box.

 

The main categories will be given in the default listbox.

I already added that manually.

Now for the second listbox ill try your trick.

Thanks.