macro to set toolbox part configuration to default

I am looking to for a macro to run on a folder full of toolbox generated components. I want to set the configuration name of each component  to "Default".

I am using a single file per component size. E.g. M8 x 25 cap head  & M8 x 35 cap head are 2 different files. The reason for this is our PDM system likes to see "default" is a main component configuration. Running Sw 2015.

SolidworksApi macros