For information on the properties that can be modified when creating a topic, please see the online IBM documentation: https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_7.5.0/com.ibm.mq.ref.adm.doc/q087060_.htm
Please note that the Topic String field is required.
See Custom Attributes for information on adding custom attributes to a topic (done on the Custom Attributes tab).