There are different ways that you can manipulate items in the CostingManager.
Drag and Drop
You can drag and drop items into other valid locations in the CostingManager. For example, you can drag a hole pattern to the No Cost Assigned folder. You can also drag and drop operations between Setup folders.
Item Selection
You can multiselect (Ctrl + select or Shift + select) items in the CostingManager to apply a common option to the selected items. For example, you can multiselect two setup operations and apply the same cost override value to them.
Navigation
You can use the keyboard to navigate the CostingManager.
Expanding and Collapsing Items
When you right-click a folder in the CostingManager, you can Expand All or Collapse All.