How to change tool
You can change operation tool several different way.
Option 1) Click on tool label from home tree view
Option 2) Click on tool label in related operation
From operation screen , you can change tool by dropdown selection [A] or open the tool store dialog [B]
Option 3) Drag tool item in treeview
Keep pressed left mouse button on tool item in HOME treeview and drag and drop it on another operation to change tool.
You can to this method only between operations with compatible tools.