Oce VarioPrint i Series Operation Manual page 226

Create a spot colour in Settings Editor
[243] Edit a spot colour
6. Use the [Tint] function to enter a tint value (%).
7. To evaluate the CMYK values, print a patch chart.
Use the [Step size] function to define the degree of patch variations. This step size is from 1 to
20.
8. Click [OK].
NOTE
You can only delete custom spot colours.
226 Chapter 9 - Manage colour definitions