Techkon SpectroDrive Manual page 43

Make ready – Press / Inks
Select a press, which you have already defined in "Settings  Measuring conditions 
Presses" (see p. 24 and 26) and fill the printing units virtually with ink (1.).
1.
An inking unit can be kept empty as well (2.).
For example, if a 6-color press is used only for CMYK-print, the last two printing
units can remain empty.
2. 3.
Manual TECHKON SpectroDrive Chapter 3 – How to use SpectroDrive Page 43