The idea about to make selecting objects on miro boards much more comfortable. The idea is to select everything what is touched by the selction rect when pulling the selection rect angle from upper left to lower right (this is how selecting currently works) and only select everything whats inside the rectangle when pulling the selection rect from lower right to upper left.
I once worked with this feature in a well known CAD program. This feature made selecting objects in cluttered drawings unbelieveable more comfortable.
Would be nice to see this feature in miro as well.