Custom tab in Player topbar - trigger state of object in Slide Master?

I was attempting to create a custom tab in the Player topbar. I'm trying to add a "Help" tab that triggers the state of an object/layer in the Slide Master. However, when editing the Tab, no objects/layers appear in the "On Object" drop-down menu that I've placed in the Slide Master. It can however find objects in Slide 1.

Is it possible for customer Tabs int he Player to change states of objects in the Slide Master? 

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