0.3125
0.625
0.9375
1.5625
1.875
2.1875
2.8125
3.125
3.4375
4.0625
4.375
4.6875
0
1.25
2.5
3.75
5
0
4
8
12
16
20
Set minor grid by index as an object
a
0
1.25
2.5
3.75
5