Is the only option when doing a save as to do this 'duplication string'? This is really painful.

We often need to do a save as and renumber some of the components. eg.

Original

Product A - save as to - Product B

part 1 - save as to part 10

part 2 - retain as - part 2

part 3 - save as to part 11

part 4 - retain as - part 4