Hi Lorenz,
.002 NPLC (or RATE as you'd find in the manual) is the lowest value you can set for NPLC with this unit. If you type in "0.0002" as you claim you did above, KickStart will autocorrect to the lowest possible NPLC value of 0.002.
If you are wanting to scan as quickly as possible through KickStart, you can set the time between scans to 0 seconds and turn autozero OFF (uncheck box next to Autozero) when you are configuring your scan and channels. This will be the fastest possible scanning time available. Depending on hardware and firmware overhead, you should be able to get to around 1-2 ms. between scans. This rapid-fire operation will sacrifice accuracy for speed though, just a fair warning.