Michael

I know it is very early days yet with development of V5, and I'm unaware the your plans for GUI improvements. Although the view window buttons on the bottom nav bar function well, I wonder if there is a more elegant solution that doesn't hog so much screen realestate.
Although the colours are a bit garish, I think the navigation cube in this online SD modeller could serve as an example:
https://stephaneginier.com/archive/nomad_demo/

The navCube is immediately comprehensible on initial encounter with the interface and the labelling of faces greatly assists with orientation.
It also includes screen reset facility: clicking a second time on the cube face selection zooms to selected object extents.

Now, I know that there is no option for split screen, but perhaps a small adjacent 4 pane window icon could solve this requirement.
Please disregard this suggestion if it does not meld with your vision of Moi3d

James
https://www.instagram.com/nodeology/