Meeting registrations closing time

Is your feature request related to a problem? Please describe.
Right now we can enable registrations for meetings. But some organizers want to close the registrations before the meeting time which is not possible right now unless you manually disable the registrations from the admin panel.

Describe the solution you'd like
When meeting registrations are enabled, I would like to have a date+time field where I could define the time when the registrations are closed. This could be in the admin panel's meeting registrations view.

When defined, registering for the meeting would not be possible when this time is reached.

Describe alternatives you've considered
As mentioned, it is now possible to manually close the registrations from the admin panel but having this extra field would make it more automated.

Additional context
This is an actual user request from a meeting organizer.

Does this issue could impact on users private data?
No.

Funded by
No funding available right now.