You will find PICScript on the WinPICS toolbar under, | PICScript.
PICScript enables you to use mathematical expressions to create horizons or grids. Grid scripts may contain, mathematical expressions, logical expressions, constants, accumulation variables, and gridded surfaces. Horizon scripts may contain mathematical expressions, logical expressions, constants, accumulation variables, horizons, and seismic attribute values extracted or computed over a time window.
Design your own math scripts and save them for future use. Mathematical expressions are constructed using aliases. When you run a script you will assign surfaces or seismic attributes to aliases in the script. This way you can reuse your script in any project or change inputs without having to rewrite the script.
WinPICS is shipped with several example scripts. Simply assign your own surfaces or seismic attributes and seismic time windows when you run these scripts. Or use the supplied scripts as templates and edit them to create your own custom scripts.
PICScript syntax is loosely based on the C programming language. Experienced programmers will find PICScript easy to use. However, function buttons, and automatic declarations will allow you to construct scripts even if you are a beginner.