To display the toolpath editor, double click on the toolpath icon of the operation in the Machining Browser. The Toolpath Editor is a dockable dialog bar that will be initially docked below the machining browser.

The Toolpath Editor dialog shows 2 tabs Global Edits and Selection Edits on the top with a list box that lists the tool motions that can be edited.  Below this list box there is another list box that displays the operation name, the number of toolpath points as well as the estimated machining time. You can remove individual tool motions from the tool path by selecting the desired lines.

Editing the toolpaths using the Toolpath Editor flags the Machining Operation folder to red marker that the toolpaths have been edited graphically.

If you see an operation in your Machining Job that is flagged, you will see the flagged toolpath motions in the Toolpath Editor.  Double-clicking on a flagged motion in the Toolpath Editor will display the tool at that coordinate location.  Conditions that can flag operations include Tool Holder collisions or if the Setup orientation is not reachable.