In this dialog box you specify if you will be creating your part with 4th axis indexing or 5th axis positioning.
To complete this page:
If you are not using 4th axis milling click No.
If you are using 4th axis positioning, or 4th axis wrapping check 4th Axis Positioning, then click the axis you index around. See Indexing or Fourth axis wrapping for more information.
Click Next.