Adding tooltips to Column Headers.

Hi Anonymous 
Unfortunately, we don't have this functionality built in.

But there is a workaround with buttons that you can implement to reach a goal.

Please refer to my responses at the linked discussion
https://community.fabric.microsoft.com/t5/Desktop/How-to-add-a-Notes-to-Matrix-visual-values-if-you-hover-over-it/m-p/3320935#M1109101

It also has a demo pbix to let you follow my steps

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Hi  You can change the width of the canvas to avoid the scroll of visuals, and yes it is just a workaround.

As I mentioned at the post that I linked

This option doesn't exist in Power BI, unfortunately.

Only at addins like zebra / inforiver.

There is also an idea about this issue, please vote for it here:
https://ideas.fabric.microsoft.com/ideas/idea/?ideaid=241fe7d1-ec6a-454a-a93c-03f1080d0f2e

If this post helps, then please consider Accepting it as the solution to help the other members find it more quickly

Anonymous