From MeasureColor 18.3 and later it is possible to measure M0, M1 and M2 conditions with the X-Rite i1 Pro2.
The X-Rite i1 Pro2 enables M1 and M2 measurements by taking two measurements for every sample and calculate the correct values. The reason behind this is the special light source configuration of the i1.
Just press the button on the i1 Pro2 and wait for the instrument to run it's measuring cycle. This will typically take a bit longer than an M0 measurement.
Scanning a multi-row basically works the same as scanning 3 single Color bars. Just scan every row from left to right, and from right to left as explained above.