You can use Entity Change Manager to change the level of time detail in target entities, add or remove years, and set the Base Period and Last Historical Period.
To change time structures:
Select Server and then Entity Change Management.
Open an ECM document.
Select Edit, then Add Time Change, and then select Change Time Structure.
In Start Year, select a start year that is less than or equal to the first year in the file.
In End Year, select a final year that is equal to or greater than the last year in the file.
In Required Years, select the years to include.
Select the years to include.
Select Level of Time Detail in Target options:
Keep Target's Time Detail— If the target includes this year, maintain the same time detail.
Get Time Detail from Base Entity—Apply the base entity's time details such as level (quarters or weeks e.g.), sub-periods, and aggregate periods to the target entity.
Choose Time Detail below—Select to specify the time period level in the base entity.
From Calculate Input select an option:
Optional: Specify any of the following: .
Set Base Period—Use the same base period in the target and base entities.
Set Last Historical Period—Make the last historical period in the target entity the same as that in the base entity.
Add Required Years to Targets if not present—If the target do not contain all of the Required Years, use to add the selected level of time detail for each year
Delete Years Earlier than Start Year—Remove years in the target that occur before the Start Year.