Question on Progress Indicator Placeholder

None of the embedded objects on quiz/score slides (and master slides) can be copy/pasted.

Drag&Drop is not a default type of question. It is sort of a hybrid, which lacks a lot of features available on the default question types. In this case the progress indicator. If you want such an indicator you'll have to create it from scratch. 

You talk about one of the Quick Start Projects, Alliance.  That adds another complication, because like some other QSPs the question slides are only partially based on a master slide, the quiz slides have been edited instead of having the master slides edited. Not a good practice, which I regret a lot. You'll see when you add another quiz slide without duplicating an existing one that it will look very different. 

For a D&D slide normally there is no dedicated master slide.  In this specific project they created two D&D slides. But contrary to quiz slides, they don't have embedded objects. This seems all very confusing, I know. Have been posting about 40 blogs only about quizzing... you may now understand why. 

Long time ago I explained the creation of a custom progress indicator (more for localisation, was not yet possible through Preferences at that moment). However, if you allow multiple Retake on quiz level, the workflow described there will not be functional. If you don't have too many quiz slides, and really need a progress indicator also for the D&D slides, the quickest way may be to enter it manually. Look at the object style for the progress indicator and mimick it with a normal text container (caption or shape).

While you can make many interactive objects contribute to the quiz, only a quiz question will have the placeholder objects for the progress indicator. You can fake it for the drag and drop question because the values of the progress indicator will include the drag and drop, but you will have to manually add the progress indicator accordingly. There is a variable for the total number of question slides but I don't think there isn't one for the current number of question slides. Hope that helps.