You don't want to read the whole manual to see first results? Ok, here's the Quickstart HowTo:

1. Download the software
2. Install it.
3. Generate your key
4. Add your Custom Data
5. Ask another SKDS user for a sample script. Provide him your key to let him encrypt the script matching to your key
6. Start the program
7. set the preferences
8. Load your received Script, encrypted with your key
9. start the function you want by make a double click in the first, yellow column
10. Have fun