It's all about the Software

After a lot of searching I build a small gadget which is a PTT button and an indication of the TX status.
It uses the Relay function of SDR Console. A small movie (sorry for the bad quality):

https://www.dropbox.com/scl/fi/ivdv7fspbtsl8dy7456ut/IMG_5642.MOV?rlkey=43tq15sm04375lpnfxq6bik25&st ...