Fontsize of margins | report-class (KOMA-script) | Lyx 1.6.1

[jezZiFeR]

Hello,

I would like to change the fontsize of margins and, if possible, also  
other attributes in report-class (KOMA-script):
I would like to have them a little smaller, left adjusted, and without  
serifs.

Is the same also possible for citations, there I would like to change  
the fontsize also.

Best*
Jess