Gimlet, it has exactly what you're saying your car has.
I reset the Trip 1 meter on every fill so I know how far I've gone since I filled up, the instrument display shows this on the right panel, change to Fuel display & it shows the average fuel use of L/100km, the instant fuel use (very handy to watch this on different right wrist imputs) and at the very bottom, info piece #3, is distance to empty, this is all there from fill up, just switch between Trip 1 & Fuel after fill up reset on both.
Up to you if you want to reset the Trip 1 data, if you didn't, the first one, distance since filling, would be compounded, average fuel use would be more accurate as you're using a bigger sample of data, Instant fuel use would be the same as would distance to empty. The issue I can see with that is you're using historical data as opposed to current riding data to estimate your distance to empty, so if last week you were giving it stick, the fuel use would be high as opposed to touring (say) which is going to be more economical. IMO you want the current fuel usage data to accurately display your available range.
I can get 300km easily from a tank in general highway riding, 340km if I really have to stretch it, or giving it a bit of stick & it'll drop to 240 - 250km for the tank.