How to merge two harddrive partitions to one folder to load



I have  a Hisense 32″ A4 Series 1080p Smart Android TV (32A4H) with kodi installed. I had to partition a 4tb drive into two 2tb to be seen on the tv otherwise if it the full 3.6tb partition it give says its corrupted. 

The thing is when I go to 

Imagehttps://ibb.co/zPzBmzR this I don’t see the harddrive in as a selection and when I click on external storage it takes me to the andoird tv on folder system with DCIM and other things that are running the device its own built in storage I mean to say.

https://ibb.co/D7HzCv6

When I go to enter file selection then click on files the two partitions show up and the tv reads it as two seperate drives so it shows as two seperate drives. I want to merge the two into one folder but the problem is when I go add video it not showing up unless i go to files then the two show up. I am wondering if I need to mount something on the andriod tv so I can go add video click browse and see the two partitons and from there browse and add them both to correct one folder.