Assign IdPs to categories based on an entity attribute values in metadata
In SWITCHaai the SPs feature already the type of home organization as entity attribute in metadata. If that would be extended to the IdPs, the WAYF could make use of that type info to sort the IdPs into categories.
So the WAYF configuration would only contain the name of the category as well as the entity attribute and its value(s) that should go into a certain category. No need to manually list the IdPs entity IDs in the config file.