Please edit your posts in stead of posting new ones.
Click once on a "call service" node, on the right side, there are tabs, one of which is the info tab. Read the information belonging to this node and how to use it.
Also go through the documentation of node-red, which harbours a lot of useful insights.
Without my 5s delay the service nodes don´t trigger...
Ofcourse they will, the problem is more likely that the flow variable has not been set before you are pressing the buttons and you are overwriting the flow variable.
