How to find in which all pages custom content and custom components are used?

As part of customization, we create several custom content (via Lithium Admin) and custom components (via Lithium Studio). Custom components sometimes also embed custom content. These custom content and custom components are then placed in pages.

How can we find out where all these custom content and custom components are used.

Scenario : 

A custom component is created and then added to a few pages. While modifying/deleting the custom component, I won't know which all pages will be affected.

So, is there a freemarker or api method which tells us this?