In OSX kicommand folder must be located in two locations by default

[Thingable]

To get the plugin to run I had to place the folder in both '/Applications/Kicad/kicad.app/Contents/SharedSupport/scripting/plugins' and a folder that I created in '/Users/username/kicad'.

[HiGregSmith]

I think this is correct. I use the ~/kicad folder to store user commands and current state. There is probably a better way to do this, but let me know if this is an actual problem.