Filter for brokers in TC In List

On certain TC contracts, multiple brokers might be involved. Whenever that is the case, the TC In list will only display the first entered broker. Therefore if we filter for a specific broker on the list, results will be missing.
We would like to be able to filter for a specific broker in the TC Contract list and retrieve all contracts where this broker was entered, regardless of the order (whether it is the first, second, etc on the list), to have an overview of all contracts per broker.