Apple Logic Pro X - Manual (Page 664)

Chapter 20 View and edit music notation 664
The scaling values are based on the Grid scaling and Chord scaling settings in the File > Project
Settings > Score > Chords & Grids pane.
Align selected chord grids vertically
m Select multiple chord grids, Control-click any one of them, then choose Align Object
Positions Vertically.
The selected chord grid symbols are aligned vertically.
Align all chord grids vertically
1 Control-click a chord grid, then choose Align Object Positions Vertically.
2 You’re asked if you want to align all similar objects to this one. Click OK.
All chord grids are aligned vertically.
Copy an existing chord grid
m Hold down Option while dragging an existing chord grid, then release it when you reach the
desired position.