Once you get there, you will be able to click the bar to "Find equivalent courses at other institutions." Follow the directions, selecting UMM as the campus to transfer back to, enter the 3-letter course title and 3-digit course number, and hit the search button.
You will get back a list of all approved equivalent courses and the campuses they are available on. Some non-UMS schools may be included, so check them out. If you are doing a general course search and not specifically for distance classes, you will probably need to go to the individual institution to see how and when the course is delivered.
The transfer equivalency tool is also available through the Distance Learning Class Search which can filter the classes for you.
You could also do a regular Class Search and filter for different UMS campuses and select online under the "Mode of Instruction" filter.