I work for a Mechanical contractor modeling piping and plumbing. We have a library of flanges, 3dsolids, that we want to use in our drawings. We have added the "CAD Block" column to the relevant out of the box ITM flange files and are referencing the appropriate drawings there. We are getting the content and display results we want with this approach if these flanges are placed in the drawings, item by item, using "Fill", "Takeoff" , "Swap" etc. The Designline "Fill in 3D" passes over the block references and develops our models with the generic flanges. There are work arounds for getting the content we want after the Designline fill, but the cost of this, time-wise, may mean sacrificing the content we want. Further background here, we are all former QuickPen PD3D modelers and we've gotten spoiled by the appearance of those kinds of models. On a more practical side, there have been times when these spools go to fab that a more realistic looking flange would help those guys do their work, i.e. showing a one-holed flange vs. annotating a one-holed flange (picture being worth a thousand words). Is there a way to get the Designline "Fill in 3D" to recognize the "CAD Block" references in the Product Listed .itm files? We've tried many solutions for getting this to happen; creating custom items, creating custom product lists, moving the referenced drawings to the folder containing the .itm, adding the appropriate statements to the AutoCAD search path. What we've learned is that these flanges can be inserted in our drawings any number of ways except by using Designline. Again, is there a way to get Designline to recognize these references and use our flanges?