Hi Ken,
I requested a related feature back in Dec 2021 - Add Camera Mode to FITS Header .
@Ken
A couple of thoughts,
I use Suffix all the time to ensure I can easily identify subs from the file name, perhaps there is another way to do this but moving Suffix off the main page will be a pain. I would rather see the Mode/Gain in the options as this is used less often.
As described in the above request, some cameras use Mode in association with Gain. So adding gain to the events without Mode doesn’t help, they need to be set together.
Hope this is possible. I was trying to test best settings for unsaturated stars last week and it would have really helped to be able to set Mode and Gain in the events.