Classifieds Feature image questions

Classifieds / General Settings / Form Fields section

Image field – what supposed to happen if “not required” is checked?

Media manager If “enable full media manager for feature image uploads” – is checked – when clicks on feature image link (on add/edit classified page), subscriber get message that he doesn’t have permissions to upload files.

Even though I think simple upload is much better for end user, and it’s really great this option exist, still curious about this option… Why is this permissions message being displayed?