On the violin the major 6th natural harmonics are usually preferred before the majord 3rds. They produce the same sounding pitch (one major 3rd 2 octaves above the open string). Unfortunately Dorico doesn’t recognize major 6th harmonics:
- don’t playback even if it is correctly defined in the Harmonics properties.
- surprisingly it is not possible to assign a string to major 6th harmonics (Note and rest property - String).
In Elaine Gould’s Behind Bars table of natural harmonics, p 417, the major 3rd is put in parenthesis as an indication I guess that the major 6th is to be preferred (see attached picture).