Question: Why is the option "Metamerism Stability" disabled, when I create an n-color test chart with the Test Chart Generator of MeasureTool?
Answer: The "Metamerism Stability" option can only be applied when all color channels are defined by spectral data.
When measuring your colors, make sure that you have selected the "Spectral" measurement mode in the Device Configuration dialog. The Pantone Palettes are included as spectral data. To verify that all color channels are defined by spectral data, look for the rainbow-colored icon after each color channel.