Adding custom elements to property panel

https://camunda.com/blog/2017/04/adding-custom-elements-to-bpmn-properties-panel/

This article is from 2017,
Does anyone know the latest method to achieve the same outcome ?

Hi @Gravity_town,

There is a forum dedicated to the BPMN.io framework. You may want to post your question there as well:
https://forum.bpmn.io/