Advanced users who have purchased xTuple Connect and want to understand the details of how it works can always read the source code. The source code for the xTuple Connect extension package is available to view from within the xTuple ERP application. Once the package is installed, just follow this path: . Expand the row marked xtbatch and pick the script you want to learn more about (scripts are named after the screen they affect). If you want to read the sources for the xTuple Connect Batch Manager client application, contact xTuple.
Most xTuple ERP extension packages are named after the product they implement. The xtConnect extension package is currently (xTuple Connect version 3.5.0) named xtbatch for historical reasons. This will change to xtconnect in a future release.