Android: Unable to download files to a external usb disk with Paragon+TC

I am using an android Tv box and I have connected through usb a external drive of 1.5Tb.
In the past I was using some other Paragon application for mounting the disk and never had any problems with saving/moving files at the external disk.

Now, the only available application is this new Paragon app, which works together with total commander. The problem is that this solves only part of the problem: the moving of files from internal to external storage.
However, there is no way to download a big torrent of 50Gb directly to the external disk, as no other program can recognize this disk, except Total commander. And I can't download this torrent to my internal storage (and after use the TC for moving the files) as it's much bigger than the available free storage.

Any ideas? Like if there is anyway that this function that TC has to access and write the folders of the external disk to be available also for the torrent client that I am using?