This is asking if you know a way to tweak your gallery function to unlock via persistent variables vs. seen. My old gallery has a lot of very arcane code in it that doesn't seem to translate easily, and I was wondering if you had more familiarity with those kind of unlockable parameters. :)
Viewing post in Easy Ren'Py Image and Replay Gallery comments
I'm sure it could be done that way, but if you're using my gallery just do a
show galleryimage
hide galleryimage
instead of setting a persistent.variable the image is not displayed and it gets unlocked in my gallery, you can do this multiple time to unlock more than one image at a time.
show galleryimage1
hide galleryimage1
show galleryimage2
hide galleryimage2