My suggestion for home brew classes is to fill the character sheet out in advance, and then you can duplicate the sheet for anyone playing that class. Even for not homebrew I have a character creation setup for folks where I just duplicate the character sheet of the class they will be using. I do this because I find that new players don't learn how characters are built when using the charactermancer. Additionally I find the charactermancer has some blind spots and bugs, just easier for me to sidestep it entirely.