$RCWAzdiv

The $RCWAzdiv command is used to set grid points along z-axis in each layer. The example is given as below

$RCWAzdiv

20
20
20
20
20
...
total layer

The $RCWAzdiv setting in GUI interface is here
1. Fill in the fields for Y grid number as needed!
2. After Step.1, remember to check this box for Manual Refractive Index, or the data will be misaligned.