Do I have to give my scores for free or is there any payed option?

Hello, I have several scores from my father, he was a great composer and Im thinking to post them on Musescore. Only he would most likely turn in his grave knowing I gave them just for free :-D. Can the download be charged? I saw not all the scores on your pages can be downloaded for free but I have no clue how to arrange it from the other side. Thanks ahead for your answer. Katarína