TranslatePress does not work for Plugin BetterDocs

Hi, I have installed a Plugin called “BetterDocs” to create and manage knowledge base documentations. It runs with Gutenberg Page Builder. Unfortunately TranslatePress does not seem to work on pages created with BetterDocs. Do I need the Pro version here or does something like this generally not work?

The page is not yet public, but I can send a pw for private use if neccessary. Many thanks in advance!
Best
Lukas