CTRL and Shift to multi-select on the Estimates View

Description: CTRL and Shift to multi-select on the Estimates View

Use Case/Example: Most of the time, on the estimates view, I want to select only one PBS. To select a new PBS, I have to deselect the current one in order to select a new one. It would be nice to have the operation more like Windows. Where it will auto-deselect the previous PBS unless I am holding CTRL, and to select several, I use shift.