I can do it on iOS and iPadOS just fine, but can no longer do this on macOS by holding down the vowel key, like I could a year or two back. It's a minor thing, but it's quite frustrating.
No, it used work even on macOS if you held down the vowel key. Same method as iOS:I think you're supposed to use the Option key. I see that Option-e makes a certain type of accent mark. Then do Option-e a to make the á character or Option-e u to make the ú character. I don't know all of the modifiers with Option since I don't use the feature. Or I just tried and I can hold down the e key and a set of options comes up.
Thanks, I'll have to try that. For the record: now before I try this command I get neither.They changed the default awhile ago I thought. Anyway it's a Terminal command and requires restart, you either get key repeat or the optional vowels but not both.
For optional vowels:
defaults write -g ApplePressAndHoldEnabled -bool true
For key repeat:
defaults write -g ApplePressAndHoldEnabled -bool false
Again restart computer then it will work!