Problem
Managerial reports in SAP Manager Self Service can only be properly displayed within the Manager Self Service Launchpad. Calling the reports directly does not provide a feasible solution as the manager can then see all the employees in the value help while he or she should just see the subordinates. Preferable would be a design like in Employee Self Service, where you can use the SAP Homepage Framework.
Solution
In a PoC, I have used the homepage framework to launch several instances of the Launchpad, grouped by Homepage Framework Areas. Even though SAP says you can have only one launchpad there are ways to achieve multiple instances. So the new flow is: Enter MSS though Homepage Framework (same customizing as in SAP ESS), provide some areas with links to portal pages carrying different launchpads (pass different „scenario“ keys within the iViews) and start the reports from there.
For the solution, there is no modification necessary, just a domain append to the MSS scenario datatype. Give it a try, MSS will be much prettier that way. And still SAP standard.