Thank you, but it’s not necessary. 
I was waiting and hoping for a piano roll tool in the past. One good start was Work in progress: Piano roll But was never released. After some research of other tools to learn how the API is working, i got some time to develop my own. I’m using it a lot since and its currently my way to go for melodies.
Edit: Btw. its crazy what Renoise allow us users to do with this API feature. Something we cant do in FL, Reason or Bitwig. That’s the reason i love to work in Renoise so much.