Use existing Zoom link

Hello,

We are promoting free Info-Webinars through several channels. In our case elopage and our own Website. The Zoom-Link is already there because it’s a planned meeting that needs to be exactly the same, no matter through which channel you registered. There is no way I can enter or choose a planned Zoom Meeting link, is that right? If so, if I create an App with Client ID and secret, can I retrieve the Zoom-Link WebinarPress creates, so I can at least change the info on elopage to the same meeting?

Thanks a lot for a short notice and kind regards,

Sunny