Moving visualizations in a dashboard to sandbox folder

[#1]

When I'm building dashboards for stakeholders- sometimes I create different versions of a table/visualization to answer the same question and then choose the best one. It would be nice to be able to right-click on a visualization/table and move it to a Sandbox folder so that I can keep them somewhere for later use.

Sometimes the one I decide on isn't the best and a stakeholder prefers one of the others! So then in the Sandbox folder one can click 'return to original dashboard'.