I'm trying to develop an API which will allow me to select one of several numbering schemes (serial numbers).  The problem is that all the examples have me building an add-in which handles the Serial Number generation as opposed to just generating it from one of the existing serial numbers set up via Admin Tool.

The reason I don't want to use a custom S/N generator, is because I don't want to loose the ability to generate new numbers via Copy Tree and Move Tree.

Would someone have the code for getting the next number from an existing PDM Serial Number?

Much thanks