If you just put a receiver on the implement it won't do any sort of the "advanced" features like Implement Guidance or AutoPath without the proper display activation or subscription. 

And those are both lumped into the Automation or Advanced level (top) depending on your screen generation so if you pay for the use of one you might as well use both. 

Just adding a 2nd globe won't change anything without that higher level on your screen. They will share the RTK back to the 2nd basic globe