[Help] maps and modules

I need help. Is there a way to either add a module into a pre-existing game or copy maps from one game into another. I put a lot of effort into making some maps but want to add them to the game I am running or add my players to the game but need to add the module I brought in order to gain all access 

If you built them in Roll20 through the use of tiles and tokens, you will need to use the transmogrifier (pro subscription feature). If you had uploaded it then you can just use the image from your art library. A workaround for the free accounts is to take a screenshot of the map and upload it. The how to do this is on the forums in various posts but I'm sure someone with hands-on experience will drop in and explain the step by step process.

If it is a module, there is no direct method because a module has to be chosen when you create the game.  If it is an addon, then you can add it in game settings.  One thing you could try is to link the map to a character sheet, and then transfer it through the character vault.  Or upgrade to a pro subscription for a month and use the transmogrifier to move stuff between games however you see fit.

Thanks, both of you I will try the screenshot idea as I don't have a subscription

You can always pay for it for 1 month.   Do what you need to, and then cancel.

 screenshots worked thanks the images are a little stretched and I had to redo the tokens and gm stuff  but that was easy enough.