There is no model type capable of showing all objects, their default symbol, and there connections to other symbols to provide a model of the filter metamodel.
Please create a report available of the filter that auto generates a model representing the ‘Metamodel’ of the select filter.
Or, generate a new database with all the model types and their objects with their relationships as defined in the filter.
Then, the above can be used to modify and maintain to illustrate the filter’s Metamodel, or create a new filter from the database.