When you open a Score Editor window while several regions are selected in the Tracks area, Logic Pro for Mac automatically creates a score set containing the instruments of the selected regions. You can also create a score set in the Score Sets window. Score sets you create are saved with the project.
Choose New > New Empty Set in the Score Sets window.
You can insert instruments into the empty score set, one at a time.
Choose New > Duplicate Set in the Score Sets window.
Select at least one MIDI region for all software instrument tracks you want to include in the score set.
Choose Layout > Create Score Set from Selection (or use the corresponding key command) in the Score Editor.
A new score set is created and displayed, which consists of all instruments used by the currently selected MIDI regions. Score sets created this way are automatically named after the instruments they contain.
Choose New > New Complete Set in the Score Sets window.
If several instruments or staffs use the same MIDI sound for playback (with the same MIDI channel on the same MIDI instrument), and you want to display these staffs with different instrument names in the score, you need to create a separate track instrument for each staff, in the Tracks area.
Select the score set in the Score Sets window, then choose New > Delete Set.