New custom component based on studio component

Dear Community,

we’d like to create a new custom "Users Online" component, because the Lithium Studio components “forums.widget.users-online”, “community.widget.users-online” and “users.widget.users-avatars-online” do not fit our needs.

We know that it is possible to create custom components with FreeMarker etc., but:

• is is possible to get the FreeMarker-Code of Lithium Studio components (e.g. “community.widget.users-online”) and customize it according to our needs or do we have the create the custom component from scratch?
• Is it possible to look up the code of Lithium Studio components e.g. in the Lithium documentation?

Thank you!

Best regards,

Clemens