Unfortunately this was a HUGE mistake IMHO by the developers of this software. For whatever (stupid) reason they feel that even though photos can be shared with the forum and viewed on the forum, they’re not part of the forum, they’re in the gallery. Because of this data isn’t totally shared so the gallery has NO clue what threads the photos are posted on.
I’ve posted multiple times on the softwares main website and have started questioning some custom work to make this happen, but as of today, it’s not possible........because of a stupid reason.