Help with Unique phonetic Deseret Alphabet

DESERET ALPHABET HELP

Ok, so I’ve figured out how to put the characters into the fontself maker and assign each character their basic letter assignment / alternative; but I was wondering if there is anyway to assign individual characters multiple letter assignments i.e. E=ee L=th D=sh etc.

Thanks hanks for the help,
Sauze

Is ‘ligatures’ what you are looking for?