One of the parts in my project was printing with a short final system. I’ve fixed that by unchecking the justify final system checkbox in Layout Options. However, although the final system now runs the full width of the page, it still only contains two very wide bars. What I was hoping for was for the bars to be arranged evenly between the systems . Is there another setting I need to make to achieve this?
In the score - sorry, I didn’t realise there was anywhere else I could do it. How would I add it in a part layout - is that something in Layout Options?
Select the appropriate part layout (the pull-down at the top of the screen), and edit away. Although some changes (e.g. note pitches) may transfer back to the score, layout changes should not.
Here’s some info about switching between the layout shown in the current tab, and here is info about opening up separate tabs. You might also want to read up about layouts here, and how they interact with flows and players here.