Currently you may invite clients to edit a page. When doing so an email is generated and sent to the client that includes a link to access the page so that they may edit. However, if for any reason they delete the email or for any reason cant find the link, they would need to contact the agency and figure out how to resend. (As I could not find out how to resend).

However, if that page that they have access to edit now appears in their "my pages" it can eliminate a lot of back and forth communication.