Can DMS migration use wildcard range for schema?

Question

I am using AWS DMS to migrate data from one postgres db to another postgres db and would like to spread the migration into multiple replication tasks. Ideally I would like to do so by splitting the schema range into alphabetical chunks using wildcard ranges. For example I had hoped that a wildcard of "[a-c]%" would migrate all schema starting with a, b or c. According to the following link such wildcards are allowed but in fact they don't work:

https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Wildcards.html

Only limited use of "%" seems successful. Has anyone been able to use more complicated wildcarding for DMS migration schema?