How to change the Meeting Name

I’ve added the code below to a web page and tested. It tested successfully. My questions are:

  1. How can a User, visiting the web page, change the meeting/chat name, before starting a new video chat/meeting (in other words how can someone create a new chat room)?

  2. If it can’t be changed, can’t anyone who knows the meeting/chat name join the video chat anytime they want to?

  3. When using the code below, there is no bandwidth being used from my web site for this video chat/meeting, it’s all going through Jitsi, correct?

  4. What are the restrictions/limitations/downside for me using this on my web page?

  5. How can I modify/style this html of this?

  6. What is the cost of white-labeling this to match my web site?

    <script src='https://meet.jit.si/external_api.js'></script>
    <div id="meeting"></div>
    <script>
    const options = {
     parentNode: document.querySelector('#meeting'),
     roomName: 'JitsiMeetAPIExample',
     width: 700,
     height: 700,    }
    

    meetAPI = new JitsiMeetExternalAPI(“meet.jit.si”, options);
    </script>

I look forward being enlightened.

I’m not 100% sure of what you are asking. But recently I wanted to change a meeting name.
I created a meeting for a future time using my Google account calendar
Then I just edited the jitsi created meeting name in my calendar to the name I wanted, I had already tested the name I wanted in the Start a meeting page
Seems to work fine