Hello @MSaliba5, thank you for sharing this screenshot!
You will need to upgrade your subscription to Starter/Pro to access this specific page. I can put you in contact with our Sales team for more information about it. This page also contains more details.
Hello @MSaliba5 , when you hover over the locked icon does it shows more information about it? Currently, you need Marketing Hub Professional, Enterprise CMS Hub Professional, and Enterprise Legacy Marketing Hub Basic to access. I would also recommend checking your permissions to be able to edit. More information here