Changing dependencies to an operation

To change dependencies to an operation, get the list of operations by entering OPER in the command line of the MODIFYING AN OCCURRENCE IN THE CURRENT PLAN panel. In the list of operations, enter S in the row command field to get details of the operation. Select option 1 (DEPENDENCIES) in the MODIFYING AN OPERATION IN THE CURRENT PLAN, as described in Changing and adding dependencies. You can then delete dependencies and create new ones. You can handle both internal, external, and conditional dependencies.