Take a look at the symbols available in Engraver Font Extra :

A method :

1 ) Document Options -> Fonts -> Notation : in the pop up menu, select Accidentals and select EngraveFontExtras 24

2) Document Options -> Accidentals -> Music Characters : in the pop up menu, select the Sharp, and change its symbol to the quarter note sharp (EngraverFontExtra).

Select the double sharp, and replace it with the regular sharp.

3) Do the same for flats.

Now typing  + once on a note will give you the quarter note sharp. Type a second time, you'll get the regular sharp.

Apply a similar procedure for flats using the - key.

PrintMusic doesn’t have a Documents Options. The only way to do this would be to set the microtones as expressions, and assign them as needed.