With the picture in the edit mode, click once on the graph. In the program tree the picture should expand and the group that represents the graph will be highlighted. Click the plus sign preceding the group , that should expand the graph group and another group called HistScrollBar2 should be exposed. Expand HistScrollBar2 to get yet another 4 groups, Expand those groups to find the one you need to modify, then right click on the scroll icon in the program tree within the group you want to modify, choose edit script. Change the value of ShapeObj.ScrollPercentage = 50 to what you need for your app. On the toolbar click Debug, then compile picture from the dropdown menu. Save the changes, close VB editor, save picture and it should work.
