You can paste this below into a text file, save it and then import it into ColorPort to create a custom target. I use excel to generate the step values and then copy that to a text file and then import to color port. .
0 0 0
2.55 2.55 2.55
5.1 5.1 5.1
7.65 7.65 7.65
10.2 10.2 10.2
12.75 12.75 12.75
15.3 15.3 15.3
17.85 17.85 17.85
20.4 20.4 20.4
22.95 22.95 22.95
25.5 25.5 25.5
38.25 38.25 38.25
51 51 51
63.75 63.75 63.75
76.5 76.5 76.5
89.25 89.25 89.25
102 102 102
114.75 114.75 114.75
127.5 127.5 127.5
140.25 140.25 140.25
153 153 153
165.75 165.75 165.75
178.5 178.5 178.5
191.25 191.25 191.25
204 204 204
216.75 216.75 216.75
229.5 229.5 229.5
232.05 232.05 232.05
234.6 234.6 234.6
237.15 237.15 237.15
239.7 239.7 239.7
242.25 242.25 242.25
244.8 244.8 244.8
247.35 247.35 247.35
249.9 249.9 249.9
252.45 252.45 252.45
255 255 255
Richard Boutwell