Fn Key and Razer Naga

Hello everyone! I've had my Razer naga chroma for the past 5-6 years and been TOTALLY happy with it , durable little mouse that hasn't acted up since purchase! Following that thinking i went ahead and bought a small 60% keyboard (Razer Huntsman Mini ) which has the most amazing touch i've felt on a keyboard in a decent while and consisted of a decent upgrade from my g910. Issue when opting for the down-size is that i dont have the multimedia keys but FN key helps a lot! However, i am not used to the placing of the fn key and could easily justify putting it in the #1 key on the razer naga so that i can eventually get used to pressing other keys along with it to have full control over the keyboard without having to use both hands while gaming. When going into Synapse 3 and press then FN button however it doesnt get recognised as a Key press to be part of the "Key Recording" of the keyboard function . Looking forward to any help that might make this feesible as this would make much sense to me and help me with the keyboard going forward (considering i just bought it and plan on using it for the next at least 2-3 years) Thanks in advance to everyone who read that far!