Draw.io for Atlassian's Confluence - Custom libraries for draw.io

In which situations does it make sense to use custom libraries within draw.io?
Is it possible to share custom libraries?

Hi, you can check out this blogpost: Custom Libraries vs Custom Templates in draw.io and this one
Diagrams with draw.io for Confluence: Work with Custom Libraries to lear all about custom libraries.

This video Use custom shape libraries and the scratchpad in draw.io for Atlassian Confluence (Cloud) is also great:

Fore more general info on draw.io for Confluence or Jira, please refer to our draw.io webpage.

And some great blogposts! Blog - draw.io