Not a big problem, but perhaps something to add to a feature list. Adding the redundant traces on the pattern just limits pathways for other traces and makes it difficult to remove those traces as the pattern is no longer the same one stored in the library.

Thanks for letting me know that I wasn't missing something about this in DipTrace.

This seems to pop up every now and then. I know I want support for this as well. It's quite common with switches, and really makes it a lot easier to route a matrix.