1-16chrd, an interesting idea...

[Steffen]

that's a nice solution.

I think we should allow this as an exception to the rules to make the empty file possible
AND not break MLCad.

Once a fixed version of MLCad [at some fine day] is out, we can replace the empty file's contents
to be really empty, and/or remove the references to it.

I need that empty file as well (my suggestion to name it in fact is P\empty.dat).
These low-res implementations of the LEGO logo need to be empty in low-res:
http://www.ldraw.org/cgi-bin/ptdetail.cg...8/logo.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../logo2.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../logo3.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../logo4.dat
http://www.ldraw.org/cgi-bin/ptdetail.cg.../logo5.dat