This application demonstrates the use of the Grid on a popup screen to provide the user a means of selecting individual pens to be displayed on the Trend Control Object. When a pen is hidden on the Trend, the Add Pen icon in the Toolbar is used to open the popup screen with the Grid. The user selects a row on the Grid, and one of the selected valaue array positions configured in the Advanced dialog is used to add the pen to the current Trend display.