Thanks a lot for the explanation!
As I said, I still have a lot to learn about this camera and all the settings and features available!
If you make a tutorial, also show how you set it on the camera! A star trail is definitely something I would love to do but haven't tried it yet!
The leading authority on astro, and with a Sony A7iii, is Alyn Wallace on YouTube. This is how he stacks star trails:
Thank you very much!