Barline spacing
You can find options for the default spacing of all barlines project-wide on the Spacing Gaps page in .
On the Spacing Gaps page in Engraving Options, you can change project-wide values for the spaces before and after barlines, and between barlines and other staff objects, such as clefs, time signatures, or key signatures.
The options are accompanied by diagrams to help you visualize how they affect the appearance of your music.