VPLEX GeoSynchrony 5.2 SP1 introduces some great improvements to the GUI.
I think the most awaited feature is the ability to create a distributed device directly from a claimed storage volume (backend LUN)

These five new features are now available with GeoSynchrony 5.2 SP1:

• Ability to view a map of distributed devices
• Ability to create a distributed device from the storage volume view
• A means to save distributed device mappings to a file
• Ability to sort virtual volumes by consistency group
• Ability to automatically add the ports of a selected initiator during storage view creation

The following video is demonstrating the GUI improvements: