This tip is so idiotic that it barely rates as a tip, but ya know, whatever...

So we all know that using Select All Instances when you right-click an object selects all instances in the project, not just in your view. But what if you only want to select all instances in this view, or on one storey only?

The idiotic workaround: after you select all instances, click the sunglasses icon on the View Control Bar and Isolate Elements.

Click off somewhere to deselect all the objects. But all that's on your screen now are objects from the previous selection only in this view -- window-select them, and as long as your view range isn't allowing you to accidentally select other objects, you're done.