Best way to retain states for buttons on slide master

Is there a straightforward way to retain the states (visited buttons) for buttons located on a slide master? I just need 5 buttons that hold their visited state.

Have read the following posts but not sure they are what I need:

How do I keep Master Slide Buttons showing as "Selected?"

Buttons-on-the-master-slide-don-t-keep-the-state

Thoughts much appreciated.

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