Can i somehow access the SmallVideos of all joined participants including mine?

I would need jitsi as a videochat backend for a game app. The users shall be placed freely on a board and programmatically join a channel and see each other (including myself) in a small form…is this
a) possible via external api? to see all users and get their small video streams (like the participants strip in jitsi webclient on the right side)
b) can i do this via react modules? i saw there is a Videolayout.Smallvideo(pariticpantID) function…but what would i need to be able to access this via my own code?

thanks a lot for your support

kind regards,