Another, temporary way to transfer selections:
Sometimes the plan view gets so complex with overlapping elements that the only way to see and select an element is in the 3D window.
Once you have it selected in the 3D window, engage the Find and Select dialog and option-click the element to transfer its parameters to the Find and Select choices list. If it is unique, then you won't need many choices on the list to define the selection. However, the more similar the element is to others, the more selection parameter choices you'll need to establish the unique choice.
Switch to the plan and use Find and Select to get it for you.