Feature request: Saving a complete window layout.

[luke]

It would be nice to save a complete window layout. When I switch from dual to single pane, a lot of unused whitespace covers the right side of the X2 window.

And when I switch from single to dual pane, the main window is too small.

So when you could save a complete layout with window, pane and column sizes and tabs it would solve that point.

Greetings, Luke