Create Module for Personal Use

I am currently running five different games. I have created a 1-shot dungeon to be used as a sort of bonus level (it's not connected to the main campaign), using a PDF I purchased. I made my own map and NPCs for use in roll20. I want to create a module so I can simply add this to each game wholecloth (and not have to recreate the map page, import NPCs, redraw the dynamic lighting, etc.).  But since it's an adaptation of someone else's work, I don't want it to be available for sale in the marketplace.  Is there a way to create a module JUST for personal use but not have it listed in the marketplace? Thanks!

Nope, not possible to create modules/addons on your own. But you could use one game as a template and copy it instead of creating new games from scratch. btw, Addons are the marketplace items that can be added to existing games, modules can only be used to create a new game.