It would really help if you provided a screenshot of your relevant blocks, so we can see what you are trying to do, and where the problem may be.
To get an image of your blocks, right click in the Blocks Editor and select "Download Blocks as Image". You might want to use an image editor to crop etc. if required. Then post it here in the community.
Yes, my Problem was that the green "every button" block don't work directly if it is putted in the place from the orange "get button" block, this might bi a bug to solve in the future or it is an idea to make the code shorter or more direkt, might this bi an idea for the developers?
Actually, the nb193 release included a number of list related operators that one would typically find in a functional programming language (App Inventor actually targets Scheme under the hood). However, there's a bit of finagling to be done because App Inventor forces blocks to either return values or not, whereas in Scheme technically every S-expression returns a value. You can use the map operator to apply an operation to every object: