Can I assign more than 1 hour of code to a section?

I would like to create a tic-tac-toe style board for students to choose their own adventure. Each square would be an Hour of Code of different lengths (lessons vs week). They would have the quarter to complete as many squares as possible with a minimum of 3 squares making a Tic-Tac-Toe.
Is there a way to assign multiple Hours of Code so they can easily access what is on their tic tac toe board right in code.org? Right now I have the board set up and have URL’s to each Hour of Code activity they have on their board.