As stated in your case, this is specific to AOS and is not a standard field in SuiteCRM but there is a module that can do this in our extensions directory.
Thanks Will. On first sight this module doesn’t exactly do what I want… I want to have the possibility to bulk upload images and show them with thumbs in the subpanel. This can be related to a (custom) module.
If there’s no possibility for image field in the existing system, I guess I need to post this as a project on freelancer.com
If anyone knows about integrations between existing gallery software and sugar/suitecrm… Let me know.