Step1: Go to the pencil tool within each webinar reading 'Edit/View Webinar details'
Step2: Click 'Webinar Branding' and then to 'ADD CUSTOM DOMAIN'
Step3: Enter your sub-domain and then click 'Save'
Step4: To connect your Sub-domain with your Domain, click on ' CONNECT DOMAIN', with this you will be directed to the page where you will have list of all your sub-domains.
Step5: Search in the search bar for the Sub-domain with which you want to connect your Domain and click on the 'Eye' button against the same.
Step6: Enter your Domain name and click 'Save Domain', with this sub-domain will be connected to your Domain.