You can input fingerings on existing notes using the fingerings popover, both during note input and by adding them to existing notes.
Note
You can only add fingerings to notes at one rhythmic position at a time, and you can only input as many fingerings as there are notes at each rhythmic position. For example, you can input three fingerings at the rhythmic position of a chord containing three notes, but only one fingering at the rhythmic position of a single note.
You can only add fingerings to a single voice at a time. If you select notes in multiple voices, fingerings are only input into the top voice.
Although they contain two numbers, substitution fingerings are considered one fingering, meaning you can add substitution fingerings to single notes.
Procedure
In Write mode, do one of the following:
Start note input.
Select an existing note on a single staff to which you want to add fingering.
If you want to add fingerings to all notes in a chord, select all the notes in the chord.
Optional: During note input, input at least one note.
Open the fingerings popover in any of the following ways:
Press Shift-F.
In the Notations toolbox, click Popovers, then Fingerings.
Optional: If you are inputting fingerings for fretted instruments, change the hand in one of the following ways:
To switch to the right hand, press Down Arrow.
To switch to the left hand, press Up Arrow.
The popover icon updates to show the current hand.
Fingerings popover when inputting right-hand fingerings
Fingerings popover when inputting left-hand fingerings
Enter the fingerings you want into the popover.
For example, enter:
3-2 for a substitution fingering from the third finger to the second finger.
1,3,5 for a chord.
12 to show the first two valves should be depressed on a valved brass instrument.
p for a right-hand thumb fingering or t for a left-hand thumb fingering.
2/ for a fingering with a shift indicator.
Optional: To advance the popover to the next note/chord in the current voice, press Space.
Tip
You can also navigate the popover forwards and backwards by different amounts.
Press Return to close the popover.
Result
The fingerings are input on the selected notes, including during note input. The popover advances through notes in the voice indicated by the note symbol beside the caret, or in the same voice as your initial selection.