If you click on help on the start screen.
Then go to about pcdmis.
Then look at the license info.
There is a section for installed modules.
Look at the list and there should be pcdmis toolchanger in the list.
If not its an add on that costs money.
Instructions still available? Cant seem to find it
No sorry it's not, but it's fairly straightforward.
Run the full calibration (Edit > Prefs > Probe Changer --- Calibrate Tab > Full Calibration)
Follow the instructions. It's been a while but /I think you have to take 1 hit on the top of the metal section (lock the lids back first), then one on the front, then one on the inner left edge of the left hand port.
You need to click Ok on the instructions before taking each hit.