Unity Editor Overlaying Editor

Hello Unity People,

I would like to create program that will allow users with no 3d experience to create certain content and publish it. is it possible to create a simpler unity editor above the exiting editor and its content menus to allow it being used by people with no knowledge of 3d Engines also Is it possible to overwrite unity menu? or is it easier or to create a viewable unity editor at run time and allow the user to create and publish what they need at run time?