You can allow remote domains from tweak settings in cPanel.
Allow Remote DomainsThis item lets you allow cPanel users to create parked and addon domains that resolve to other servers. To make your selection, click the button corresponding to the option you wish to use. This value defaults to Off.
Warning: Enabling this option can cause major security issues. We strongly recommend that you do not enable this option.
Allow Remote DomainsThis item lets you allow cPanel users to create parked and addon domains that resolve to other servers. To make your selection, click the button corresponding to the option you wish to use. This value defaults to Off.
Warning: Enabling this option can cause major security issues. We strongly recommend that you do not enable this option.