Editing a Shared Site
To edit a site that's been shared with you, follow these steps:
On your Dashboard, click the Shared Sites tab.
If you access your shared sites via a folder, click the My Sites tab, click the folders dropdown at the top of the page, then select the Shared folder.Locate the shared site you want to edit and click its Edit icon.
You're done! The shared site should now open in the builder for editing.