You are able to access your simulation's mesh interface settings using Ansys Fluent's web interface.

 Setup → Mesh Interfaces

From here, you can create new mesh interfaces or turbo-machinery-specific mesh interfaces, as well as view and make changes to existing mesh interfaces that are available in your session. The available settings are similar to those found in the standard Fluent solver. For more detailed information about them, see Create Mesh Interfaces Dialog Box.