"Body" Functionality Missing Creo 6.0.6.0

I am trying to split bodies but every tutorial and support page on ptc refers to a "Body" ribbon up at the top where I have highlighted in red. What am I doing wrong? I have never had such an issue trying to learn a new feature. I have been able to split a part in sheet metal with no issue but now that i have a regular part it feels like I am missing a function. I just want to know where the Split Body Command is. I have used the search command with no success.