Thank a lot for your quick response :)
I found it. I deed it hides in the window menu very down at the bottom.
Now I hope it will works as I expect and save me a lot of time.

Hi everyone,
just started with Templater and installed it for the first time in trial mode.
The main settings panel is missing, but I can apply the effect to a layer.
Where can I enable it?
I literally looked everywhere even under my chair, uninstalled and installed couple times, updated everything and so on.
Now I’m rather at a loss now. Is there a hidden button or so?
Tanks in advance…