How can I control the indent space?  My entries can be

Suite and Optimus Suite 5
#1

How can I control the
indent space?  My entries can be quite long, and I would like to minimize
the space needed on the left hand side

#2

You can make indent a few pixels using next approach:

.standartTreeImage img{ width:5px; }

But in this case the native +/- sings will not be
shown (their width is about 18px).

(See in documentation samples/pro_plain_view.html)

And there is an enableMultiLineItems(width) which allows to split string
on few lines (with width=“width”).