How to show images on text hover in google docs addon

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I am new to google docs Add-ons. I am working on an add-on in which I need to show set of image on text hover like tooltip in html

I did not find a way to implement this after hours of googling. please help.

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This is not possible.

The above because the Documents Service of Google Apps Script doesn't include "on hover" event / trigger or something similar

The only way is by using a dialog or sidebar and they can only be launched by clicking on a custom menu or by using google.script.run on a previously opened dialog / sidebar.

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