NCP docker: external storage app

Hello all,
I’m running NCP x86 docker on my Openmediavault nas machine; now I’d like to use the external storage app to mount a shared folder of my openmediavault machine to the ncp docker but not found a way to do it.
Is it possible? how to mount a directory on the host machine to the ncp doker container? something like the nc-automount would be a great feature.
Thank you

look up how to mount external volumes in a docker container