Ah, but where was I when this function was announced ??
Exactly what I'm looking for, as you say!
I've been using the AnnotateImage script for a long time and I've seen from time to time the word "user defined text" at the bottom layer, but I do not know what he could do. I thought it was strictly for something related to the identification of stars or other DSO's on our images, or some other data from personal star catalogs.
I just tested it and I note the most important: this script can run once in the container process and the container image, which is essential to name hundreds of images at a time.
A little annoying that the images must have astrometric solution, but it does the work anyway, congratulations Mr. Pozo!
When I think it's been years that I deprive myself of dating my animations .... tssk tssk...
To the administrators: You can transfer this discussion in the section which will seem to you the most appropriate, since it is no longer a wishlist.