Anyone ever heard of it? I added M2.5 button head cap screw size to the Toolbox. I can create the counterbore hole just fine. But, when I try to insert the matching Toolbox part, I get a message saying "There is no matching size for this component" next to my cursor. Then it defaults to the last size used. I can then pick M2.5 from the pull down list but then get a "No values found for rule 40" message. I made sure to add a few lengths after creating the size in the Toolbox. But, they are not listed in the length list.