As you know Revit uses only 2D lines, but Autocad uses 2D polylines. Polylines are so more useful than lines. Revit exports filled regions and masking regions as hatches and wipeouts. But their boundaries are exported as lines, not as polylines. Making them completely useless. Having associative hatches and its' boundaries as polylines would make editing in Autocad a breeze.
An addin that recreates hatches boundaries and make the hatches associative would be like pure gold.
