[gentoo-user] [OT] Dropping file from....the commandline?

Hi,

I am playing around with "Meshroom" -- an OpenSource software able to
create 3D-objects for Blender for example by scanning a bunch of
photos.

But...
Meshroom expects exspects image file to be dropped onto a certain
place of its gui...to make it really easy to use.
There is no "import" or "open" dialog for images...

I am using openbox and urxvt as interface...am I out?

How can I drop files from the commandline into Meshroom?

Thanks for dropping me a help in advance!

Cheers!
Meino