Please help. Erasing duplicates.

My memory isn't what it used to be. What is the command when it finds and deletes blocks/lines duplicated and layed over each other?

My mind has drew a blank. Maybe it's cause I'm going on Holiday on Monday and have already shut my head down.

you may be looking for OVERKILL

Brilliant. Thankyou very much.

Ah, spoke too soon. Maybe the command I am thinking of doesn't exist. Wouldn't be the first time...........................

Ah, spoke too soon. Maybe the command I am thinking of doesn't exist. Wouldn't be the first time...........................

make sure you have Express Tools installed. The OVERKILL command isn't apart of the main AutoCAD package.

Yeah, I have overkill. Just doesn't do what I want it to do.

Afer interrogating the drawing, it seems that blocks with different names, but essentially the same have been placed over each other. Looking like singulars, but being two or three copies directly over the eachother. I was hoping to have a command that would see that that they are directly over the top and erase all below them. I feel i need to stress that this is a drawing that has come in, not created here.