Route-domain in APM

I am trying to setup a user being assigned to a specific route-domain when logging on to the APM. According to the documentation it should be under "General Purpose" under the visual policy editor. When I navigate there, i don't have that option. I only have (Decision Box, Email, Empty, iRule event, Local DB, Logging, Message Box)

 

I am looking at this article:

 

https://support.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm-config-11-2-0/apm_config_general_actions.html199344

 

This section:

 

1. If general purpose actions are not expanded, click the plus sign () next to General Purpose.

    

2. Select Route Domain Selection and click Add Item. The Route Domain Selection action popup screen opens.

    

I am running 11.6 HF6.

 

Any help appreciated.

 

Thanks