#LogicProX @StudioIntern1

  Set main finger 4    ⌃⌥⇧4

With the Score Editor open you bring up the Staff Style panel (⌃⌥⇧S) and change the “Head” setting to “Finger”. Choose the finger number that you want to apply and click on the note head.

Score Editor keEdit staff style parameters in the Logic Pro Staff Style window — Apple Support

Set the appearance of note heads: Choose a value from the Head pop-up menu. You can display note heads as normal, show note names or finger names, or hide the note heads completely.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND