Is there an easy way to implement a drop-down list in Storyline?

I could use one for a project I'm developing, but I don't see it among the Interactive Objects on the Insert tab. Of course, I guess I could build one from a scrolling panel, clickable hotspots, and some animations, but honestly that seems like a lot of trouble for a simple drop-down list. It just seems like the kind of basic control that should be supported out of the box. Any ideas?

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