it's not possible, in musescore 3.5 to edit numbers (and the same 4 the repetition) inside volta. Pls help

here in these score made with 3.5 version, I cannot change the numbers under the volta line. I need to repeat the chorus 3 times than into the four going to another chord progression. But i can only use volta 1 for the first 3 chorus and 2 for the chords change in the ending of A section.