In the BAM Portal you are able to view related BAM Activities. This is a crucial feature to be able to view repeating group information within a message as well as be able to see other related messages used in the overall business process. This feature does not exist currently in BizTalk360 in the Data Access - Business Access Monitoring section
This feature has come as part of the version 8.6 release. Sing up to our newsletter to be notified of upcoming releases.