Still in AutoCAD subject. Did you ever had many areas hatched with the same hatch any you want to get rid off some of them?
Another useful button is present in AutoCAD since version 2011. It’s accessible only from Options Panel on the Hatch Editor contextual ribbon tab. When you expand it you will find a Separate Hatch button. It’s active only when a hatch composed from more the one hatched areas is selected. (I couldn’t find any information about if there is a keyboard command triggering that function.)
Attached image illustrates also functions accessible at the origin point of the hatch and on its boundary points.
When you select a point press Ctrl to cycle between those functions. It works similar as for polylines.