I have noticed that in FME 2017, you can choose to build a list of attributes in the parameter settings of the transformers that supports the list. Instead of using all attributes to build the list as before.
This is a very good feature, but I also noticed that it does not allow users to select any attributes (although it can run, but there will be a warning prompt). But in some cases I just want to build a list, and I don't want to choose any attributes, such as the _relationships{}.de9im that just wants to get the SpatialRelator list properties.
I suggest Selected Attributes as an option. When the user does not select any attributes, use the default attributes of supplier to build a list. Do not generate a list if there are no default attributes.



