Shift 3 with a long press
Back in 2014, my 6850 came with the default "shift all cogs" with a long press. That's never useful.
My setting is "shift 3 cogs with a long press" of a rear shifter button. That's holding the button for 1/2 second or longer.
At the base of a hill: hold both bottom buttons to get the small chainring and 3 smaller cogs. Nice, no thinking required, and no auto chainring shifting.
Over the crest of the hill: hold both top buttons, to get the big ring and 3 larger cogs.
That works great with my 11-32. I think there's a "shift 2 cogs" setting also.
I ride lots of small rolling terrain, so this is used quite often. I can decide which climbs are small enough to just power over on the big ring cross chained, or if shifting the front is better.