Do you have a GFX 750 or a CFX 750?    There is a big difference between those 2 screens.


I can't answer all your other questions but I'd be shocked if a GFX 750 can't record what you're planting.     

A CFX 750 most likely can't and is an absolute mess of a screen.    Whoever came up with the programming on those was demented.    They work and they work well for what they are capable of, but they are not easy to figure out.


A FMX/FM 1000 screen is 1000x easier to use than a CFX-750 and is capable of recording hybrids.    And would be a direct plug and play with all of the wiring harnesses used with a CFX-750.