Musescore on iPad : lock focus mode?

I find the iPad app very handy to learn scores. I recently discovered the "focus mode" (pressing the top keyboard icon). I can select a loop and work a small portion of the score.

Unfortunately, this feature does a continuous sliding of the score, the focussed portion got out of the screen and I can't properly loop because I don't see the beginning anymore.

Is there any option somewhere to lock the score and prevent it from scrolling?

Here a video:
https://www.youtube.com/shorts/kcNr6kwAtuE