With the "Start point" check box you can influence the point where the machining begins. Depending on the geometry, it is the nearest possible position next to your point.
Check the checkbox to activate the "Start Point" button and push it. In this window you can key in x, y and z coordinates for your new point or select a point in the graphic area by pushing the "…" button.
With "Rotate by" you can relocate the start position for the following cut. The coordinates will be calculated with the step over and the angle you set
Notes:
The start point can be selected only when machining closed lanes.
Selecting a start point does not change the machining order even if the selected point is closer to the last lane than to the first one.
Default toolpath start position:

Toolpath start position with new start point:

This is a toolpath start position with a new start point and a 20 degrees rotation angle.
