Need Help to Interpret Software Reports

The documentation for my newly acquired Smartlink software is clearly not intended for patient use, and lacks any information on interpreting reports. Where can I find such information? For example, in the single night report shown here:

https://www.cpap.com/viewImage.php?PNum ... report.jpg

why is there a maximum leak and an average leak value at any given moment? What are the events represented by the letters A, S, H, E, L and M? Links to some in-depth explanations would be appreciated.

This link may be what you're looking for;

http://www.devilbisshealthcare.com/medi ... mLocale=ca

Brenda