Thanks Dabulina,
But I find your answer too late I find a way… It`s very similar to your Blueprint maybe the same… only I have several Midi Devices and focus on port 5… this weekend I focus and prepare this piano as example - Virtual Upright Piano UE4 Demo - YouTube
Here I use UE4 only for Midi Visualisation and generates sound from Native Instruments Kontakt. In all ways I am using the same Midi Input.
Hope to have time for inprovements later…