How can option to mute camera of participants by moderator

Hello, i have a problem developing on jitsi.

My problem:
place an extra button on the options menu in the participant window, such as mute remote user, mute everyone. The option to turn off the user's camera view. I'm having a problem with the method that should be triggered(Trigger event such as on mute) when I click this button. (trigger event such as on mute)

Can you give me an idea of ​​what I should do?