Second Aicloud on repeater

[alphaghost]

I have two RT AC68Us and one is running as a repeater. On the main router I have a HHD and setup to work with aicloud and everything works fine. I am able to access it from my DDNS link. I have another HHD plugged into my repeater and can access it from my LAN but not from outside unless I VPN in to my home net work and all is good. I plan to keep it this way but was wondering if it was possible to setup the HHD on the repeater to be able to access it using my DDNS set on the main router.