[3DExperience, VBA]Getting the <PLM1SelectObjID> of a certain Physical Product, with VBA

Good day to all,

I'm attempting to create an automation within 3DExperience with VBA that will export a physical product by running a batch file (.bat) saved locally on my machine (the DownwardCpmpatibility batch). However at each usage the user should have the ability to choose the physical product they want to export, to the best of my understanding I have to modify the  <PLM1SelectObjID> node inside the XML file containing the parameters of said batch. (A picture of said node is included in the thread)

The problem is that I have no idea how to get this information of a physical product using VBA.

Any suggestion would be appreciated.

Thanks!