Yes, i found a way.
It works, but with another Key-Combination.
I wrote it already in my opening-post.
The key i am talking about is directly under the ESC-Button, which produces…
- ^^^^^^^^^^ or °°°°°°°°°°°°°°°
ENTER+this key works.
Also the combination TAB+ENTER works, but this is not a good solution, you will see why by testing yourself the RTE.
So the best solution in for sending a post without pressing a generated button on the page, it’s the provided key on Keyboard, althogh the VERY BEST-SOLUTION would be the “CRTL+ENTER”-Kombination.
The CRTL-key is completely unused.