BPMN.IO Custom Properties Panel

I need a freelancer to work on [login to view URL](js workflow diagram) to create a custom properites panel, which can include my custom properties. Requirement as following: 1. Include node itself properties, like node name, background-color, business properties. 2. Include extend proprties. 3. Include list properties, can do CRUD on the list, should be in the panel , not a popup panel. Also documents need to commit to describe how to add a new node properties and list properties.