Nomenclature-Glossary

[Wolfgang Engelmann]

Could somebody give me a pointer where I can find informations re 
Nomenclature. I found how to change the normal Nomenclature into 
Glossary in the preamble:
\renewcommand{\nomname}{Glossar}
But how do I
1- get a two column Glossary, in order to save space
2- how do I reduce the space between the entered name and the 
explanation such as:
FRQ        <         here less space           > Frequency Protein
Wolfgang