Jazz Notation - Major 7th Chords

It might be a silly question, but when adding major 7th chords, if I don't add the 7 after the triangle/arrow head, the chord doesn't sound like a major 7th. I understand that the 7 doesn't have to be added after a triangle, the triangle itself implies the 7th is in the raised position already. Is there a way to create a major 7th sounding chord without adding the 7 after the triangle in MuseScore yet?