In order to use the new Doc Center (doc.4d.com) with the F1 key from within 4D v11 SQL, simply modify the "Web site" address on the "Documentation Access from the Explorer" window to the following:

https://doc.4d.com/documentation/4Ddocv11/

The "Documentation Access from the Explorer" window is found from within the 4D Preferences menu from: "Design Mode" -> "Documentation" as depicted in the following screenshot:



After applying these settings, the new Doc Center will be used when the F1 key is pressed from the Design Environment and the cursor is within the boundaries of a 4D command.