The original add-on (link above) has a number of notes about individual commands, though no structured user guide or handbook yet. (Sorry.) ...

The CERT Division is a leader in cybersecurity. We partner with government, industry, law enforcement, and academia to improve the security and resilience of computer systems and networks. We study ...

It's recommended to use the alt key for keybindings. The Windows key is unfortunately a pain to remap, since the OS reserves certain keybindings (e.g. lwin+l).