The information about whether a module is overridden is in the action step Description, as can be seen below.
To retrieve that information call a LabVIEW module, either at the beginning or the end of the sequence. The LabVIEW code below will iterate through all the action steps in the sequence and get their descriptions by using property nodes. Then put all that data in a document. After that you can open the document see which step are not overridden, find them in the sequence and override them.
