This is an early editor idea that may get used or not. Imagine unreal's content browser.
It was going to handle all the main features instead of using panels/windows for materials,terrain editor, meshes, particles, presets, sounds, environment controls etc....
its one of those early development features, going back 8 month or more lol.
We just found we wanted all the controls at the fingertips, it would be good for people with dual monitor setups, but would cause all manner of hell for those that use a single monitor lol.
it should really be taken out the editor until we find a use for it(if there is one
).