You can install gSwing Scotland on you desktop for offline access. It can be downloaded here. You require at least Java runtime version 1.5. Once downloaded follow the instructions below.
Unpack the compressed tar file to your local disk in a location of your choice
$ tar cvfz gSwing-x.x-scotland-linux.tar.gz
cd into the gSwing scripts directory and start gSwing:
$ cd <gswing_home>/scripts
Download and unpack the zip file to your local disk in a location of your choice.
Using Explorer, navigate to <gswing_home>/scripts and double click on runGSwing.bat