I have recently run into several situations where we cannot assign the item number through a mapping of the filename. I found that this functionality was available back in 2010, but was lost when the properties module was redesigned for 2011 and has not worked that way since. This is most critical for non-CAD files, such as PDFs and TIFFs, as they do not typically have other properties to support a mapping. It would be great to have a way to assign the item number to use the filename without the extension.
Thanks,
Mark Cloyed