Hey @rossy,
Thank you for reaching out to the Zoom Developer Forum. The Gallery View in v1.9.0 of the Web SDK supports up to 10 participants at one time.
Currently, there isn’t a function to change the view that a user has. If you would like this feature to be considered for a future release, I recommend posting in the #feature-requests category.
Let me know if that helps.
Thanks,
Max