Hi @bandrewsHH3AM,
I got a response from one of the developers.
"Numbers, F keys and many combinations are reserved by Fusion core. However, some modifiers plus numbers can be supported. For example, "Ctrl+2" is default shortcut for "Switch sch to pcb" in schematic workspace and "Ctrl+2" is for "switch pcb to sch"."
Since we built the shortcut system on top of Fusion's shortcut system we are strapped by their limitations, so there are going to be key combos that EAGLE could handle, which we will not be able to transfer into Fusion. With that said, you should still be able to get the results you want just using different combinations.
Best Regards,

Jorge Garcia
Product Support Specialist for Fusion 360 and EAGLE
Kudos are much appreciated if the information I have shared is helpful to you and/or others.
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