How to develop Customize zoom UI, with our unique UI.

In our product we need users to get guidance from experts and experts will send some custom design widgets to users so users can interact with them during zoom calls. At the moment when we join the zoom meeting, we're getting a fixed UI design. So the question is can we design our unique UI by just using zoom video functionality, we would like to have our own buttons designed for joining, screen sharing, leaving meetings, etc.