It would be really useful if the preview/ouput, sources and audio mixer in the control view could be movable with more flexibility. And maybe selectable user presets for different productions. A bit like how you can lay out your panels in Premiere or some 3D software.

In some productions I use an ultrawide monitor, which is great for viewing more sources without scrolling but there's a lot of wasted space in the preview/output panel because it fills the width of the screen and it would be good to dock the audio mixer to fill the height of the available space