1/64 Note    7

Set the note value to a 1/64 note.

I don’t think that I have seen 1/64 notes scored for brass. Maybe some strings or percussion.

Use step input recording in Logic Pro — Apple Support

Step input allows you to insert MIDI notes when you’re not recording in real time. You can use step input to create note runs that may be too fast for you to play or to replicate sheet music that’s too difficult for you to play.