Menu View / Image and you can load any numbers image you want
Just draw it in the appopriate View

If you want to modify position later, just Menu View image again and you can move, rotate, resize...

http://moi3d.com/2.0/docs/moi_command_reference5.htm#image


You have a little video for loading an image (in French ;)
http://moiscript.weebly.com/inutilitaire-1.html