Get current menu position - menu position plus item position in menu. Add those to the target's offset to set the target's position, show it. Otherwise, point to the window if nothing else and navigate.
Array index is the menu number.
If we've reached the top of the hierarchy, return. Uses global litNow array which contains items in hierarchy. Cycle through array searching for items to change. Set target's parents to this menu item. For NS4, if a border is assigned, add a spacer to push border out to layer edges.