The Addons system introduced to connect scripts developers and users. It allows easy sharing the scripts, providing instructions, funding information (if the author needs it).

Several useful examples included, for example, the realistic destruction with random cracks.
Addons are included into regular File->Create extensions.
Install Extensions: Install 3DCoat extension – (file with extension .3dcpack). It may contain textures, Shaders, Alphas, Smart Materials, Stencils, Objects, scripts, or any other content provided by the package creator.
Look for addons: Go to the forum and seek scripts.
Browse addons folder: Browse addons folder where you downloaded the 3DC extensions.
Examples
Several official examples are provided to demonstrate the usage of Addons. Addons are placed in the UserPrefs/Addons/ folder as a set of folders and subfolders.
You may add .py and .cpp files there. Each file appears in the tree of the Addons submenu. 
If the name of a file or folder starts with a . or _, it will not appear in the tree. 
The txt files also appear as menu items; this readme.txt is an example.
If a file has the .url extension, it opens as a URL in the browser. 
If a txt file contains a URL, such as “https://pilgway.com/files/3dcoat/PythonAPI/index.html”, an “Open URL” button appears below the dialog.
Press using LMB over the 3dots at bottom
This command are more scripts examples that helps you to be use when you create your addons that are ready to be distributed.

Add folder: 
Add script: let you chose one of the recently executed scripts.
Add readme: 
Add usage information: 
Add funding info: 
Add license info: 
Add about info: 
Create redistributable package: 
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