4th axis indexing should be turned on in the Indexing tab of the stock object.
The stock should be round, about the Y (or X) axis
Indexing and wrapping occur about the STOCK axis. To help you understand this, you should show the stock axis using the using show stock axis option of the Show submenu of the View menu. The STOCK axis will show in blue.
All of your features need to be designed up off of the stock axis,for example, at the OD of your round stock. You can get them there by translating the feature up in Z, or by making a setup that is up off the stock axis.
Turn on the Wrap feature around X-axis checkbox of any feature you want to wrap.
Use a 4-axis indexing post from .../M-LBRY/4THXS.