permanently add image from external volume

On Macos UTM, I want to add a new image file living on an external volume to my VM

What I want to achive:

mkfile 1m /Volumes/HD1/disk.img
then, in UTM.app add this image to my vm (living in standard location ~/Library/Containers/UTM/Data) using Settings/Drive/New...

In this dialog, I can:
- select "import..", the image is **copied** into the container, which is not what I want
- selecte "create", a new drive is **created** in the container, which is not what I want

Actually, there is no option (e.g. "Browse...") to select the image file.

Instead, I succeeded adding it as a "Removable USB". It is then accessible in my guest vm.
This works fine, but when the Mac is restarted, the "removable usb drive" is empty and needs to be added again manually.

What I need is, in Setting/Drive/New.., an option to add an external image living on an arbitrary file on my mac.