User`s manual

List window
ModelSim Xilinx Users Manual ModelSim XE Graphic Interface 7-137
Trigger: Triggers line
Specifies that a change in the value of the selected item causes a new line to be
displayed in the List window.
Trigger: Does not trigger line
Selecting this option in the List Signals window specifies that a change in the
value of the selected item does not affect the List window.
The trigger specification affects the trigger property of the selected item. See also,
"Setting List window display properties"
(7-131).