Sorry, I realise that’s not helpful without qualifying.
Right now, I’m working on music that looks like this:
Let’s say I want to get the caret to the beginning of bar 681. I don’t want to run the risk that I accidentally select the existing notes, because if I do that then the caret will jump back to the start of the chords, five bars back. So what do I do? I select the barline, and hit Enter.
In reality I encounter situations like the one above, much more frequently than needing to quickly change a barline type.
If you were to suggest that Shift+N is what I should have trained myself to do, I’d have to agree with you, but the fact remains that most of the time, Enter still works for beginning/resuming steptime entry mode, and it’s a big target to hit rather than reaching two fingers for Shift+N.
This is just one example of why I appreciate the current behaviour with regard to default barlines. It really doesn’t bother me what happens if I hit Enter on a non-standard barline, mostly because I don’t encounter them terribly often. If your feature request is for non-standard barlines to react with the Shift+B popover when you select them and hit Enter, that’s fine by me, but I’d rather hang onto the way it currently works for default barlines.