When a new vector step is inserted, the system automatically renumbers all succeeding steps and renumbers the goto step references. Under certain conditions, attempts to renumber goto step references results in an ambiguous renumbering situation. In such a case, the step reference is replaced by an asterisk (*). A warning prompts you to resolve the ambiguous references and the cursor automatically moves to the first reference to be resolved. You cannot save a vector with unresolved goto references.

You cannot insert a new vector step if 99 steps are already entered in the vector. However, you can extend the vector program to another vector by using the goto vector unconditionally command at step 99.