OK, thanks to
@peteski 's tutorial, I can get a photo into a category in "my gallery."
If a photo of my Rivarossi based kitbash of an ATSF 1100 series chair car appears above, then I figured out the post and upload to gallery feature.
But is there an easy way to post a photo already in my gallery, or for that matter, someone else's?
I don't see is a "display photo from existing gallery"- I assume that I could open a separate window, navigate to my gallery, select the photo, copy the URL and then to back to the reply, hit the photo button and paste in the photo's address, but that seems pretty cumbersome. Am I missing something?
Also, can I use the "my gallery" to "host" my photos for use on other sites or will I see a big red X or something.