The article outlines the steps to Edit Duration of a Task on a Job.
FOLLOW STEPS BELOW:
1. Locate and open the specific Job for which you wish to edit duration for a task.
2. Access the window displaying the critical path steps associated with the selected Job.
3. Double-click the specific step for which you intend to edit duration.
4. Change duration to desired value.
Optional: Update and Units/Day value and press the ∑ icon to calculate duration.
5. Select "✔ OK".
NB. For a quick tutorial watch below