How to find the midi insert tab on cubase 8

Okay, I’m trying to access the beat designer through groove agent but I can’t find the midi insert tab. It’s not on the left hand toolbar or whatever it’s called. I’m using cubase 8. Any help will be greatly appreciated!!

This is only available in Cubase Pro and Artist. If you’re using these, right click the left panel and you’ll be able to edit which tabs are shown and which are hidden.