A plugin is a C++ library containing a collection of functions that you will be able to use in your Lua script. You can create functions to use any external library you want like off screen rendering, new network protocol, specific parser, augmented reality.
Get a plugin
Plug-ins are available through the Stonetrip Store http://www.stonetrip.com/, distributed by Stonetrip or created by users.
Use a plugin
Plugin are available directly in ShiVa Editor no matter the edition, once installed, a custom API will be available in the Script Editor.
Export a plugin
Web and Basic edition : can create, compile and test their plugin.