Hi Paul :)
Thanks for the quick answer!
In your first solution there is the following problem:
Download and install: Flexi Custom Code module (directory.appsnity.com).
Add custom PHP code inside, then check if work by publishing in a module position. If yes, in module settings change module position to "pagebuilder" then you can put that module inside "Module" addon if you need code inside SPPB
The problem is that the website no longer exists and just redirects to an domain seller.
The other answer: Sourcerer (From Regular Labs) works very nice! :)
Thanks for your quick support.