Which calendar feature allows for the addition of more years without changing time strata?

The feature that allows for the addition of more years without changing the time strata is the Append Calendar. This functionality is beneficial as it enables organizations to extend their planning horizons by adding future years or periods while maintaining the existing structure of the calendar. This is particularly important in financial and operational planning, where organizations often need to adjust or project their plans across several years.

By using the Append Calendar feature, users can ensure that their previous time dimensions, such as months or quarters within each year, remain intact and unaffected as new years are added. This helps maintain consistency in reporting and analysis over time, as all historical data retains its original context.

In contrast, other options like the Default Calendar, Audit Trail, and Consistent Naming Methodologies serve different purposes. The Default Calendar is primarily focused on establishing a standard time frame for the organization, while the Audit Trail relates to tracking changes and maintaining a record of modifications made to data. Consistent Naming Methodologies pertain to the naming conventions within the planning environment rather than modifying calendar structures. Therefore, the correct answer is the Append Calendar, as it directly addresses the need to expand time dimensions without altering the foundational time strata.