Reset "Sheet-Metal5" numbering on template

I've been slowly working on our company sheet metal part template over the last several months and often I'll have to create a temporary sheet metal feature to adjust something. Unfortunately this means that all new sheet metal parts currently start with "Sheet-Metal5" as the first sheet metal body.

Without starting the template over from scratch, I'd like to start this count at 1 or 0 for aesthetic reasons.

Things I've tried that have not worked:

1) Saving the template under a new name.

2) Renaming the sheet-metal feature to Sheet-Metal0 or Sheet-Metal1. It still remembers the old count.

SolidworksSheet Metal