Dear Stworthy
Argghhh ...
Thank you so much for your great example.
It is awesome!
There is just one thing - when you resize your example (or open on mobile device) Left view should be hidden and on Main view should be visible a button for open/show left view, please see attached image.
Can you do that, please?
If yes, then it will be great Mobile layout because Left view will be navigation (using SimpleList) and right view can hold datagrid, form's and other components ..!
Thank you for your hard work.