Layout video grid system

Hello everyone , i want to ask a question , if i want to add the opentok-layout-js library in my openvidu java-mvc-js project , what is a the best way to do it ? right now i’m using the default layout cause openvidu take care of my video players but i’m not really satisfied. Also , is openvidu java-mvc-js project already uses the opentok layout system?

Regards.