CRM: Cannot find "Activity Feeds" in my system to change settings

Hello,

I am having an unusual problem of finding the Activity Feeds section in CRM to customize its settings.

The Activity Feeds SubArea is not on my ribbon, I cannot find it within the Settings section or anywhere else. And yes I do have Activity Feeds installed.

Can you help me how to either add it to the ribbon or locate it somewhere else? I have the ribbon workbench but I do not know the entity name or url for it.

Thank you!