Single Node Expansion Mode

This parameter specifies whether tree menu should operate in Single Node expansion mode or not.
Valid values are "true" or "false"
If this mode is on then only one top level node may be opened at a time. Opening a top level node will automatically close any other top level nodes already open. This will not have any effect on levels below the top level.

Example
This example will set Single Node Expansion Mode on.
<param name="singleNodeExapansionMode" value="true">

Default
If this parameter is not present then a default value of "false" (off) is assumed.