System breaks

Yeah, I see that now. But this afternoon I couldn’t. Must be my brain. I do have another question. I’d like to move that little blue square with my trackpad, but this is only possible with option + left right, Is there a way to move them with trackpad:

My goal is making the bar wider, even full screen.

According to the manual you can’t.

You cannot move note spacing handles with the mouse, you can only move them using the keyboard.

Good you mention your goal !

If you always want the final systems in flows to justify fully, deactivate Only justify final system in flow when more than [n]% full.

That’s helpful. Thank you! But just like the “having to select barline” above, I wonder why not with mouse… you don’t have to answer that, I’ll leave you alone guys! Thanks a lot!

Just slept over it for the night. Maybe it works as it works because a rest is to Dorico not an object like a note or barline, but just a gap between entered notes.

The multibar rest you see then is a visual representation of nothing there …
And when you want to include nothing in your selection, nothing happens when your force that into the system.

To see an effect, you have to select something, which would be the barline.

That makes sense! Wauw, you know how my brain works! Thinking like this makes me understand the way Dorico operates and that is a huge help. It can be the difference between despair (in time of deadline stress) and joy! Thank you. If you ever have insights like this, feel free to share it with me!