Delete IVL arguments

An interval can have information originating from the workstation description, indicator CPIVLDP in segment CPIVL is set to Y, or else to N. If an interval is changed or created via the dialog or the program interface, the indicator CPIVLMOD in CPIVL is set to Y, or else to N.

DELETE IVL only affects modifications. Intervals with CPIVLDP=Y remain after a DELETE, the interval is reset to the daily planning values and CPIVLMOD is set to N. Intervals with CPIVLDP=N are fully deleted.