Inserts a new navigation item. This function can insert all types of navigation items.
There is a collection of helper functions in sdk/helpers/navitemhelpers.cpp(h) which provide a more convenient method of adding new navigation items.
true = the item was inserted. false = failed to insert.
Some common reasons for failure are:
Item with the same name already exists.
The NAVSETITEM structure was invalid for the type of item you were inserting.
Qbik highly recommends that you use aliases to find parent items when inserting your own navigation items. This ensures that your items continue to operate correctly even when the underlying navigation paths change.