How to extend a process node?

How to extend a process node? Who has ideas or examples? Thank you very much

@huangjiabo could you elaborate more on what do you mean by extending the process node? Are you referring reusable sub processes?

I want to add a new process node, which does not exist in BPMN and is defined according to our own business

Hi @huangjiabo,

It seems “Element Templates” serve your needs.
Please have a look at below link