Sometimes, we create multiple versions of similar worksheets. I think it would be convenient to be able to right-click a tile and select from the interactive menu to replace the sheet (tile) with another one that is not in the Dashboard. This way the dashboard's layout and structure can be unchanged. Thanks.
----> Community Manager Update: This idea was 'Released' with 2019.2 release of Tableau
Special thanks to Phil Naranjo and team for their hard work on this feature - and thank you to everyone who commented and voted!
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-- Amanda Boyle, Tableau Community Manager