(2020-08-13, 22:42)Orion Pobursky Wrote: Maybe as a additional menu option or under the "home" button?
An "always visible secondary menu bar" would work with the specific functionality for the sub domains. However, the primary menu should be present at all times and allow the user to access all areas of the website from any area of the website.
A different approach, considering mobile would be to have the primary be "Main Menu", and the secondary be "[section name] Menu".