When combining several projects together the doors get placed on top of each other. I think this has to do with the grain identifier number which uses the item number as a unique code. However, when running several projects together that have the same material and similar products it can very easily have the same sized products with the same unique number. One idea that I have is being able to add the project name in Grain Identifier prompt which would definitely make it unique, but I can't figure out how to reference the project name in the product workbook.