I received a machine with DasyLab program installed. I would like to modify a feature. When the pressure reaches 100 (set point) the programs start counting down the time set under pressure previously, if the pressure drops to lets say 99.9 the cound down time stops. I would like to create a feature that starts counting down when the pressure reaches the plus/minus value pressure set by the user lets say I want to reach 90kpsi, and my +/- value is 1kpsi then the program starts counting down when the system reaches 89 (-1) and when reaches 88.9 activates the pump to increase the pressure of the system, and so on, then opens the valves when the set hold time has reached. I have no clue in this program how to do it. Hope I can get some help and instructions how to do it. Any advise where to start in order to learn how to program in DasyLab?