I am running various feature selection methods and for each method, a list of important features is created. I would like to generate new datasets based on these attributes. The only operator I see in Rapidminer is "Select Attribute" and then choosing Subset, but here I have to select the list (up to 350 attribute names manually). Is there any smart way to do this? I have at least 10 subsets and it is really difficult to do them manually.