Currently, kafka-connect-mq-source supports three distinct (logical) sources for specifying the kafka key: JMSMessageID, JMSCorrelationID (as well as the Bytes variant) and JMSDestination (see https://github.com/ibm-messaging/kafka-connect-mq-source#key-support-and-partitioning).
We would like, however, to use a custom JMS Header for populating the kafka key. Is there any specific reason why you chose to limit support to those three possibilities and not arbitrary JMS Headers? Would you accept a PR to support arbitrary JMS Headers?
Thank you for providing this connector!