2.8 - Make the Toolbar appear below a pie menu, as a sub-menu

I am making some pie-menus to make it easier for me to jump back and forth between Maya and blender.
The new toolbar is pretty brilliant, and it would be ideal to just incorporate it in my pie menu, directly, as illustrated below. However, being a scripting n00b, i feel like I have exhausted my options, and so I hope someone here can help me out.

My current setup just has a pie menu called “Handy tools”, but I need to click it to bring up the toolbar.

Fred

I wasn’t aware you could have more than the 8 sections a pie allows, Not entirely sure I understand your question either, but if its related to pie menus, Pie Menu Editor is your best bet:

Thanks for the link, I will look at this, currently I just hacked my way based on whatever I could find online.

how do you hack it?
I want to build some custom Pie but have no idea.