Is there a way to combine macrons with other diacritic marks in greekkeys? I have found metrical longum option shift 7 but it doesn’t combine with say an acute accent.
I am trying to type vowels marked long in Reading Greek for some pupils. It’s not the end of the world if I cant do it they have the textbook.
Diacritics in Greekkeys are cumulative, so you should be able to press option-shift-= to produce the longum (or option-= for breve), then option-1 to produce the acute, then the vowel.
Note that not all fonts support these combinations, although I believe the fonts packaged with Greekkeys do. I personally use BosporosU often, and can vouch that it does have coverage for combined diacritics.