interactive book

Hi. While creating an Interactive Book, i observed that not all content types are available to add in the book.

Is there a way to add the currently unavailable content types?

For example, i would like to use the "Image Choice" content type but it's unable for use within the Interactive Book even though i'm able to use it as a standalone content type.

I'm trying to edit several interactive book activities.

Some I can edit (the smaller ones) some I can't edit (the bigger ones).
The one I have a problem with is 613.322 KB 

Is there a maximum size to edit Interactive books?
I'm using the H5P core plugin of Moodle 3.11.10 (build: 20220912) on a server with PHP 7.4.3

KInd regards

Frans Zwijnenberg

I created an interactive book for my students on Moodle. The students did the activities on it and can view their summary. On my end, I cannot see any attempts made. It is still displaying 0 submitted. What did I do wrong?