A tutorial is useless without a post-processor guide. You need to know which .opt file converts linear moves into rotary moves. The PDF should show how to edit the User Defined Events for rotary clamping.
Autodesk PowerMill 4-axis machining allows for the production of complex, symmetrical, or multi-sided parts by adding a rotary axis—typically the rotating around X—to standard 3-axis movements. Tutorials on this topic generally cover three primary techniques: Circular (rotating the part while the tool moves along X), Linear (feeding along the part form within angular limits), and Spiral (continuous rotation as the tool advances) . Key Concepts in 4-Axis PowerMill Tutorials powermill 4 axis tutorial pdf
Watch out for these red flags when evaluating a PDF: A tutorial is useless without a post-processor guide