"Invalid File Format" when trying to import a Docker image

I’m trying to import a Docker image for a custom app into Container Station. The image was created on x64 Debian workstation and saved via docker save . The image is in tar format.

Unfortunately, whenever I try to import the image into the Container Station, I get the following error: Invalid File Format - The selected file cannot be imported because the file format is not supported. I’ve tried it with both .tar file as well as with .tar.gz - same effect.

Is there any detail I’m missing?

Device: TS-453A
QTS: 5.2.3.3006
Container Station: 3.0.9.1038

OK, solved the problem. Turns out, both Containers and Images sections of the UI have import functionality and one has to import an image from the Images section.