I have around 200,000 entities in my drawings. I erased unwanted objects (approximate 150,000 nos.) to make the drawing faster. But still the drawing works in the same speed and when i audit the drawing it shows all the erased objects. In order to take effect, I need to close the drawing and open it again... My question is... "Is there any way to permanantly erase objects from the working drawing, without reopening it ??"