Before/After faster axis option defines when the value will be set to the variable. For example for axis the 'before' option will cause variable to be set prior to experiment and the 'after' option will set variable after the experiment. PPL variables can be set before faster axis only.

Load from file option loads an array of variables from the comma separated ASCII fromat string of values.

All modifications are imediate and are executed directly at run time. Cancel button restore the previous values.