(Again, really appreciate your outstanding work)
I'm trying to control JTDX from RUMlogNG, which means, when I ask him to QSY I was hoping JTDX Would do it as well

I tried to follow this procedure: https://dl2rum.de/RUMlogNG/docs/en/pages/WSJT.html but documentation is probably a bit outdated.
Sending QSO from JTDX to RUMlogNG was easy, trying to control JTDX from RUMlogNG is still a challenge.
Thanks for your help
Attachement may help to understand my issue, and what I'm doing wrong