|Available in: Enterprise, Performance, Unlimited, and
Visualforce overrides also available in: Contact Manager, Group, and Professional Editions
You can have both a Visualforce or s-control override and a Lightning Page override set for the View action at the same time on the same object. In Lightning Experience, the Lightning Page override displays. In Salesforce Classic, the Visualforce or s-control override displays.
If you have the View action overridden with a Visualforce page in Salesforce Classic, the Setup menu on that object record page in Lightning Experience displays the Edit Page option. Selecting Edit Page in Lightning Experience on an object page that’s overridden with a Visualforce page in Salesforce Classic lets you create a custom Lightning Experience record page for that object in the Lightning App Builder.