I have been reading the 2018 Desktop Basic documentation. When introducing the Integration Transformers there is an example of workbench shown below :
From the situation, I suppose the Dropbox contains only images with specific names. These names have to be contained in the ImageFile attribute of Parks.
I am wondering about the set up of the connector which allows the join of the right feature with the right ParkImage. I believe a Download action from the connector might have been done and that the destination probably was set to Attribute, but I don't seem to make it work on my own.