I have a repeated timber frame wall throughout my steel frame building.I created this wall as a standard AutoCad block and it seems to work quite well. My problem is when I run a collision check or plot the drawings the blocks cluster around the origin UCS and either generate lots of collisions show up as a cluster in the plotted drawing.Can someone please assist with how I rectify this problem, can I purge the clash check dialogue as the collisions remain even if I delete the blocks.... What is the best method of implementing a modular, repeated unit and being able to edit the master of that unit and have the slaves follow suit.