Sorry for FB link. I posted that question on Facebook too, and when I was writing this post on moodle forum I copied link from FB. I didn't know that link copied from FB post had FB adress. I wanted to link to
https://h5p.org/using-fullscreen directly

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Ad. 1 Thank you. I will search in moodledata.
Ad. 2 Yes. I was looking for a solution to make H5P activities looked well on screen. Some of activities are bigger than the screen (Memory for example, if I put many cards on it). I have solution for H5P activities which are embedded, but embedded activities don't show in gradebook. So if I want to make quiz or other assigment with grades in gradebook, I must use them directly (not embedded). Fullscreen option in all H5P activities will solve my problem, I think (in that activities which has that option, it works well).