I would like the option in the "Add Form" to choose if the user can add a record to a connected table if it doesn't exist on a Connection Field type.
Of course also be able to set the name/text and/or an Icon/button.
So with a Companies table and a Contacts Company linked together you could start to add a Contact then find they don't yet have a company so add t while in the add contacts screen (Popup/Modal) and then carry on adding the contact rather than cancelling the contact or linking it to another company if a required field then going to Companies and creating a Company and then going back to Contacts to add or update the Company.
This is on our timeline! I will connect this forum to our internal feature tracking software so I can update you here once it has been implemented.