ldconfig.ldr - need magnet material

[Steffen]

Yikes, you are right. Maybe it would be better if the enum wouldn't focus on the physical properties
but instead on the visual ones or the purpose. So simply "MAGNET" would also be OK.

However: this all gets too troublesome already. Introducing new keywords in the syntax of ldconfig.ldr
etc. will produce many problems for many people currently;
all I wanted was to get a unique number for the magnet ... :-|