On the G85 I have single central AF point on C1 and a diamond shaped area of several on C2, so switching for me is about turning the wheel. There is a button to turn for SAF to CAF or back. I find that works reasonably easy.
Niels
Pretty much the same as I used my G80 - on the G9 I can change the AF mode with just my thumb, without moving either hand away from it’s resting point, which is why I have gone this route so far.
Can’t say as if I have fully finalised my settings yet though, there are so many ways we could do things - at the moment I have just reduced things to what I really need for birding, a lot of function buttons I have made duplicates of others just so things don’t get over complicated with too many buttons for things I don’t need - if there is something I find I am missing in the field I will of course think again.