In what directory in the controller are the Coordinate System and State Plane coordinate system definitions located and is it possible to remove all but the ones I need? Someone please say yes. Don't plan on working in Argentina, Fiji, Namibia, maybe Botswana?
In the "GeoData" folder on mine.
You can create a user coordinate system definition (CSD) file in Coordinate System Manager (CSM) with just the specific ones you want to see on the controller, including any custom coordinate systems.
Of the published ones, ( Argentina etc ) you can hide them.
Then export to Custom.CSD and save in the Trimble Data folder on the controller.
If Survey Controller sees Custom.CSD, it will use those definitions as the library rather than the default one.
On the controller, I believe everything is in the Trimble Data folder.