How can move a web form from one campaign to another campaign
When you are in your new campaign, drag a Web Form item onto the canvas and double-click to go into it.
Then, using the ‘actions’ drop down at the top, choose “Copy from Campaign”.
This will allow you to copy the Web Form that you have in the other campaign into the new campaign.
Note - there is no way to keep the same URL, so the new URL and the new code will be different, so be sure you update that wherever needed.
Hope that helps.