Call an existing Source from another Proxy

Hello,

I have a XML that generates 2 sources with vtkPythonProgrammableFilter class (The sources are named “SOURCE_1” and “SOURCE_2”). Now, I want to call either SOURCE_1 or SOURCE_2 in another Proxy (Named “SOURCE_MAIN”) but I can’t find the way. Do you have any suggestion?

Thanks in advance

Miguel

PS: please, find the XML in the attached file
TEST_PROXY.xml (1.0 KB)

<ServerManagerConfiguration>

	<ProxyGroup name="sources">
	
		<SourceProxy name="SOURCE_1" class="vtkPythonProgrammableFilter">	
			<IntVectorProperty 
				name="DataInput1"
				command="SetParameter"
				initial_string="DataInput1"
				number_of_elements="1"
				default_values="1">
			</IntVectorProperty>			
		</SourceProxy>
		
		<SourceProxy name="SOURCE_2" class="vtkPythonProgrammableFilter">	
			<DoubleVectorProperty 
				name="DataInput2"
				command="SetParameter"
				initial_string="DataInput2"
				number_of_elements="1"
				default_values="0">
				<DoubleRangeDomain name="range" min="0.0" max="1.0" />
			</DoubleVectorProperty>		
		</SourceProxy>
		
		<SourceProxy name="SOURCE_MAIN" class="vtkPythonProgrammableFilter">
			<ProxyProperty>	
				<ProxyListDomain name="proxy_list">
					<Proxy group="sources" name="SOURCE_1" />
					<Proxy group="sources" name="SOURCE_2" />
				</ProxyListDomain>				
			</ProxyProperty>
		</SourceProxy>
		
	</ProxyGroup>
</ServerManagerConfiguration>