Buying a campaign as a player

Hey everyone, I have a question about buying a campaign module as a player.  I'm playing Curse of Strahd on Fantasy Grounds, and I really hate that platform.  Some of the players and I were going to see if we could convince the DM to move the campaign here, and I was going to volunteer to purchase it.  However, once I'm done playing CoS, I would also like to run it.   So, my question is: if I purchase CoS on Roll20, can I somehow share it with my DM, while still being able to run it myself in the future?

You would create the game, then once the person who will run it has joined the game, you can promote them to GM.  As the creator of the game, you will have gm permissions, but there is a button to "Rejoin as Player".  Just right click that button and set it up as a bookmark for that particular game and you will be able to enter the game without seeing all the gm layer stuff on the way in.  The content you purchase is tied to your account.  Once bought, you can create as many games with that module as you want.

This is exactly how I am playing Rime of the Frost Maiden.

Perfect.  Thanks, guys!