Variations of this topic have been brought up before, but here goes:

Since Ekos can handle such a wide variety of equipment, notably cameras, and various types of cameras have their own terminology/keywords, I would like to propose a more flexible handling of fits headers in Ekos.
E.g. DSLRs have only one gain setting: ISO. CCDs have "Gain", while CMOS have "Gain", "Offset" (or "Brightness"), and "Bandwidth".
It would be useful to have Ekos allow for a configuration file with a list of the appropriate keywords. Keywords that are in this list would then be included (with their values) in the fits header.
An alternative to this is to have, in the INDI device control manager, checkboxes after each (relevant) keyword. If the checkbox is checked, the keyword with its value will be included in the fits header of the image.
The use of a configuration file would allow for a high level of flexibility.

FITS headers are generated in INDI, not KStars, so it must be done at the CCD driver side (INDI::CCD class). Patches are welcome!

Thanks, Jasem. In my case that would be the asi driver then.
I'll post the suggestion on the zwo user group forum, since I don't have the programming skills.

Cheers,
Wim