article (koma-script) with smallest font size

[Jacek M. Holeczek]

Hi,
I need to write a small article which default font size will be the
"smallest" (it produces about 75 lines per A4 page, instead of about 35
with the "default" font).
I can set the "smallest" font size for a group of characters using
"Layout -> Character Style -> Size -> Smallest", but I cannot do the same
for the WHOLE article. The problem is that the corresponding menu looks
like : "Layout -> Document Layout -> Font Size -> [default|10|11|12]".
If I "mark" the whole text and set the "Character" font to smallest it
produces a lot of erratic behavior.
Could you please help me,
Thanks in advance,
Jacek.