The teal selection boxes could be dynamically resized to be more relative to the size of the object it is linked too.
Oh! and when selecting objects on different z depths it would be nice if the actual object on a lower z depth I've got my mouse over is picked instead of another object that is above it , "if that makes sense".
It's annoying trying to click a block below a drawingcanvas object on the layoutview and the drawingcanvas keeps getting clicked when I just wanted to click the block underneath it do you see what i'm saying : ).
Oh and yes, when moving objects it would be nice if we could use the arrow keys to move objects in the layoutview instead of relying on just the mouse all the time would be great for accurate alignments.