Hi Felipe
Thanks for your response but the parameters "Number nBalance1 nBalance2" confused me.

Then I tried doing your
WebGet psValue of oCustomBalance to nBalance1

in my case
WebGet psValue of oInfo to sInfo
WebSet psValue or oInfoExpanded to sInfo
where oInfo is the 3rd column on the list.
and oInfoExpanded is the cWebListExpandedPanel

It worked! Very simple solution.
Thanks Felipe