This option is not available when in the
[Display Unit] link's [Extended Settings] tab, [Ethernet Multilink
Settings] group's [Action Mode] property is set to the [Slave]
option.
Enable
Sets up the GP-Viewer EX feature.
Enable Screen Changes from Client
Defines whether or not you can change the display screen from
the GP-Viewer EX client.
If this item is not selected, even users with
read/write privilege (as defined in the security settings) cannot
change the screen from GP-Viewer EX.