Within Insight users with Creator or Admin privileges have the ability to share dashboards with other Insight users. If you are unfamiliar with how to share a dashboard we encourage you to review this article. 
If you have had a dashboard shared with you that is either no longer relevant or you are simply cleaning up your dashboard area, you can remove a dashboard that has been shared with you by simply clicking the “Remove Shared Dashboard” that is located below the tile of the dashboard as shown in the screenshot below. 
Once you click the option to remove a dashboard you will be prompted with a pop up confirming that you want to remove this shared dashboard and that the user that created it will need to re-share it with you if you would like to access it again.
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