Question on sending ACT and SAT scores

Hello. Is it possible to cancel an ACT score sending request? I used the 4 free score reports, but I changed my mind on one school and no longer want to send my ACT score to them. Is it possible to make this change? I recall ACT said I could change or add more schools, provided that I do so before the 11th of December. I can’t find the option to remove a school, however.

Also, are both ACT and SAT priority reports going to be counted for EACH school I send to?

Thank you!