You can change the distance between playing technique-specific noteheads positioned above/below single-line percussion staves and the staff line. Larger distances make the difference between notes on the line and notes above/below the line more noticeable.
Procedure
- Press Ctrl/Cmd-Shift-E to open Engraving Options.
- In the category list, click Percussion.
- In the Single-line Percussion section, change the value for Distance of above/below notes from line.
- Click Apply, then Close.