@Techman, I don't get Motror Control nodes for the ZRTSi with 5.0.16.c. All I get is Multilevel Switch for the 16 RTSi devices and one Controller for the ZRTSi itself. With previous 4.X.X firmware I did get Motor Control nodes.
Z-wave multilevel switch devices don't seem to work at all. There is no status and no actions (other than query and write changes) shown in the admin console for the device. Before upgrading to 5.X.XX I had binary control (0% or 100%). I'm using Somfy ZRTSi devices.