Need help with side folder tabs in Storyline

I am trying to design folder tabs for the right side in Storyline where they reveal the title when hover. I tried to change states but the new state just presented over the old one so the text overlapped. Also, the text jumped to the side and looked distorted when I enlarged the tab. Can I use shapes to design the tabs or do I have to import ready made tabs?

Is there a good tutorial I can follow?

Thanks!

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