Enter the operation number. For example 10, 20, 30 etc. The operation lists is always sorted by the operation number. The system suggests the next operation number according to the above. You can use the same operation number when terms are used, but please note that a manufacturing order does not accept more than one operation row per operation number.
If you have installed the Time Calculation function, you can right-click here and access the Time Calculation via the Info menu.