Solution found by myself:
Almost like written in https://www.pulse-station.com/ifttt-service/
1) If THIS (Service is called: WEBHOOKS)
2) for using a power-switch you need 2 trigger: power-1-on & power-2-off
3) make 2 devices in Pulse-Station
4) steer it simple via blockly
Greeting from Munich
Andi