Is it possible to do something like a Kirby 2 field group in Kirby 3?
I could certainly use the new “section” approach, but in the context of a the page preset template, I can’t seem to get that to work in the “main” column.
Yes, a page preset cannot have a section within the fields area. You either have to use a field group as explained in the linked docs, or you have to let go of the preset.