tests/modbus/modbus_0@modbus/ModbusTCPserver_0@ModbusTCPserver/HoldingRegs@MemoryArea/confnode.xml
SVGHMI: reworked widget (un)subscription now a method of widgect object, allowing special subscription methods
<?xml version='1.0' encoding='utf-8'?>
<MemoryArea xmlns:xsd="http://www.w3.org/2001/XMLSchema" MemoryAreaType="03 - Holding Registers" Nr_of_Channels="1"/>