I understand this is an old topic, however it does not appear to have been resolved with any form of relevant information.
"Clocking" a rotary broach in a Swiss machine is relatively easy, it just requires some mild craftiness on your part in configuring the broaching holder setup and programming. Contact me directly in a private message if you want to know how, I'll be happy to share the trade secret.
For additional infor on rotary broaching in Swiss Machines, this is a great resource:
Rotary Broaching Technical Information, Broaching Trouble Shooting and Speeds and Feeds Data Rotary Broaching 101 - How to Perform Rotary Broaching in Metalworking Machines