[Plugin: SB Child List] nest_level working?

Excellent plugin!
However: when using the shortcode like
[sb_child_list nest_level=”3″]
or without the “s or other values, is shows only the first level.
The default value obviously is 2 levels of child pages.

I would like to show more levels, possible 4 or 5. Is it possible?

http://wordpress.org/extend/plugins/sb-child-list/