I create my own custom property panel using an official example. In my application, I create 3 tabs i.e. General, Input, and Output. See below image,
My all custom changes now reflect in BPMN XML too,
<?xml version="1.0" encoding="UTF-8"?>
<bpmn2:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn2="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:Input="http://Input" id="sample-diagram" targetNamespace="http://bpmn.io/schema/bpmn" xsi:schemaLocation="http://www.omg.org/spec/BPMN/20100524/MODEL BPMN20.xsd">
<bpmn2:process id="Process_1" isExecutable="false">
<bpmn2:startEvent id="StartEvent_1" name="initial" Input:input="3" />
</bpmn2:process>
<bpmndi:BPMNDiagram id="BPMNDiagram_1">
<bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_1">
<bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="StartEvent_1">
<dc:Bounds x="412" y="240" width="36" height="36" />
<bpmndi:BPMNLabel>
<dc:Bounds x="417" y="283" width="26" height="14" />
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</bpmn2:definitions>
But my customize changes not showing me in Camunda standalone application,
Also, my custom tab information reflects in XML only if I update something manually under the particular tab.
I want all tabs should be in XML doesn’t matter whether edit any property and custom tabs should be present in the standalone application.
My code is here.