Configuration Variable for Custom Toolbox

Hi everyone!

I have a small (but time consuming) challenge in that we have a ton of custom tool boxes created that all require re-pathing so it seems. I have before used Configuration Variables for loading Cell Libraries, but am curious to know if there is a way to attempt this with these tool boxes?

Additionally we will not only need to modify the UNC pathing here in Calgary but then will need to re-path the tool boxes again with two of our other locations in Denver and Mumbai.

Or even if there is a way to modify via PFE or a text editor of the USTN.m01 files?