Forward only links

FAQ states that you can use GoToolLinkingNew.ForwardsOnly property to keep users from drawing new links backward. They give the following code:
Dim tool as GoToolLinkingNew = CType(aGoView.FindMouseTool(GetType(GoToolLinkingNew)), _

GoToolLinkingNew)

tool.ForwardsOnly = True Where would this be placed in the ProtoApp project?

In the initialization of each view, either in the GraphView constructor or in the GraphViewWindow MDI child frame initialization.