Add QuickSelection option from Autocad into Revit. I mean select stuff directly by using filters (in the active view, in the entire project, in a phase, in a partition, by name, by level, by category, etc) WITHOUT having to draw a selection window first. Revit is mainly a database, it is beyond obvious we should select/inquiry objects by filters, NOT by drawing arbitrary selection windows on screen. We draw selection window, then use filters anyways.