[chimera-dev] Plugin installation from a web link

[Alex]

Hello Chimera developers,

If I remember well, during a visit in your lab in January, Conrad Huang 
showed me a way to package a Python plugin that can be installed just by 
opening the package with Chimera.

Do you have an example? I found something vaguely related here: 
http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/webdata/chimerax.html
But I don't see how to include commands to copy libraries or python 
modules into the lib or share directories, or to make sure Chimera can 
remember where to find the files in the future.

Many thanks for your help,
Alex