As per below video, I made custom data reference and attached DLL file using "%pihome%\AF" command. I am getting custom data reference in "Data Reference" property which I can assigned to attribute successfully. It is working fine but when I am trying to reference other parent attribute like ".\Other Quality" in Target Attribute then it is not working. Not working means I cannot assign any reference to Target Attribute as shown in video tutorial. May be it's read only which I need to make it writable. Please suggest.
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