In the EXT_Components folder you can put sub folders 
- each sub folder will constitue one Component - the name of the folder is the component name.

Each component can have js scripts to be loaded when angular app starts - all js found here will be loaded
Each component must have a cshtml file for content structure - name this <component name>.cshtml
Each component probably has css style sheets - all css found here will be loaded - if <name>.min.css is found then <name>.css is skipped

-------------------
-------------------
Use a component in MDriven Designer by setting UIOverride on ViewModelColumn and:
tagged value Angular_Ext_Component=<component name>
-------------------
--------------------

Example:
 see: https://wiki.mdriven.net/index.php/EXT_Components



