Solution
Viewing the front panels of reentrant VIs in real-time applications compiled for deployment is not possible, as allowing dynamic access to instances of a reentrant VI would prevent the memory model of real-time operating systems from maintaining the determinism which makes them unique. For deployed applications, the main way for users to access the information on the front panel of a reentrant real-time VI would be to transfer that information to a host-side VI using shared variables. See: Sharing Data Using Shared Variables.
However, there is a workaround for accessing the front panels of reentrant real-time VIs which can be used if you are working with a real-time program in the development environment, or have compiled your real-time application to be debuggable and access the code using the Operate » Debug Application or Shared Library. With one of the previous configurations, you could access the information from your reentrant VI's front panel by passing the data to the front panel of a non-reentrant subVI inside your re-entrant VI. You could then control which set of information you're viewing on your non-reentrant VI's front panel by using a case structure controlled by a registry of the names of the reentrant VI's instances. An example of what this might look like is below.
