Second similar flightplan - 02?

Is it possible that when a second version of an existing flight plan is made that it could be automatically renamed (for example EGLLKJFK01 we know to be the first and subsequent entry could be EGLLKJFK02 instead of overwriting 01. It would also be useful if different versions are need for the sim (X-Plane uses two different formats for the FMS files).
As I regularly download around 11 formats its tricky to go find each one to change the name before creating another one.