Hum,
I'm testing this in the source and I think it would be nice to add 2 buttons "Shrink if to wide" and "Resize to contents" to this dialog (since we can't access the context menu entry)
Yes, you can do it before, but if you create a special dialog for width colum, you might as well put all of them in it.
Also, I have the impression that "Shrink colum if to wide" does not work (image) Calibre 6.6.1 / Source ; Windows 10
In any case, the autistic that I am, I will be able to adjust either colum pixel perfect as I want, or with pretty multiple of 50 (150, 200...300...)
A big thank you
