Using SW3 I have two questions for consideration. Thank you to all are kind enough to offer help. 1) Since SW is smart enough to automatically create a bounding box around a component, is there a way to access and use the size of this box for a BOM Material Size entry? Right now I am linking each xyz dim to a Special Property. 2) Can a macro be written that will link a part on sheet 2,3,etc. to the BOM Item# on sheet 1? If so, I would like to discuss $$ for someone to do it for me. This is why: I always use multiple sheets and include an informational Block with each of several items detailed on the sheet (usually four to six Items per sheet). I have been able to do some very nice linking to Custom Properties for the Name and Material of each Item, but I also want to include the Quantity and BOM Item# of the part. This is how I think it could be done. If the Item# and Quantity can be determined by a spread sheet that looks at the assembly Feature Manager tree, then, is it not possible to also link that data to an updateable (replaceable) Custom Property for each Item of the assembly?