You can import an existing campaign into another workspace without having to recreate it. All campaign details, including the sequence (email copy), schedule, and settings, will be copied, except for leads, analytics, and replies.
Open the target campaign
Click on the "..." icon in the top right corner and select "Share campaign"
You are presented with two options: Copy Link or Export File.
Select "Copy link"
Log in to your new workspace in incognito mode and paste the copied link into the web browser.
Click on "Let's go" when prompted.
Once you've done that, you'll see the campaign right there in front of you.
Congratulations, you've successfully imported your campaign to the new workspace!