Explanation of the
preferences:
30 = Bond angle in degrees
1.54 = Bond distance (1,54 Angström is for the C-C- bond the preferen. You
may change it as you want.)
1 =
Line width in 0,1mm
(1 = 0,1 mm)

Example: Draw a pentagon by
setting the bond angle to 36 degrees or a cyclohexane with 30°.
Text alignment:

In the Text Aligment box you may select how the
text has to be formatted.
Example: You also may align
as superscript.
When you select the aligment 0=to fit („0
ausgerichtet“) in the aligmnet box, you may move the text with the arrow keys.
The mouse pointer has to be
placed therefore over the red point.
Text Aligments
0 = to fit
1= right
2 = centered
3 = left
4 = super
5 = sub