Google Calendar integration/add-on: custom link to an existent Zoom Meeting

When schedulling a meeting directly through Google Calendar using the Zoom for Google Workplace Add-on, and when adding video conferencing to the meeting, there is not an option to add an already existent link - is this possible to change through settings or it's not technically possible?

Eg. someone creates a zoom link directly through the app, that I then want to add to a calendar event but the add-on doesn't allow me to - it just creates a new zoom link without allowing edition.