Hi,Any body will please help me out!,I am new to dyanamic blocks,I need to create a dyanamic block FOR HOLLOW CORE SLABS detailing with the, It should wrk for below conditions,1)create a rectangle,  constraint width
2)Polygon with desire shape with constraint width,3) Auto text with Block no. and length.(only if new slab is created,)4)Option for Lifiting Loops, and holes at desire location.