Question:
Two people were niftar at around the same time. I already signed up to learn a masechta of mishnayos for one of them. May I sign up for the same masechta for the second person too and count the same learning for two people?
Answer:
You may learn the mishnayos for both people at the same time.
Sources:
Kayal Taarog in the name of Horav Shteinman zt”l, Rav Y. Cahen shlit”a