You have to turn on hi-res mode for 0.01uA resolution. Press the light button for 2 seconds on the fluke 87V (same as -5) to turn it on and off.
On the older (non -V) 87s, hi-res mode is a turn on option, press the light button while turning on and it will give you the extended resolution (and will be quite slow).
I just verified it that it will give you 0.01uA resolution on both the newer and the older Fluke 87s.