Select multiple non-adjacent cells in modules/dashboard grids

[Rebecca]

Description of enhancement: Select multiple non-adjacent cells in modules/dashboard grids. 

A story for why they want the enhancement, (how would it help their business process): This enhancement highly useful for business users, as they can see values of Quick Sum Bar for selection.

[Rebecca]

This is a large piece of work. If it was small we'd do it straight away, however, given it's size we'll keep it on the backlog and re-consider in the future if we can get it on the roadmap.