So to me the possibilities of lightning were already known. The display and the keys are constructed catchy and logical.
The coupling to the flash controller 560-TX was tricky, but the video on Youtube descriptions are totally great.
After that it was no problem. Setting, connect, flash. For the 560-II I ordered a set rf603 cII. The work on my Pentax K3.
So .. off to new opportunities; also with a Pentax :-)