In each alias table defined for a database, you can specify alias names for predefined Dynamic Time Series members. You can then use the alias names to retrieve the Dynamic Time Series members in Spreadsheet Add-in or in a report.
To create an alias name for a Dynamic Time Series member:
Select Outline, then Dynamic time series to open the Define Dynamic Time Series Members dialog box.
For each enabled Dynamic Time Series member to be given an alias name, select the intersecting cell in the appropriate alias table column and enter the desired alias name.
Click OK to close the dialog box.
“Setting Aliases” in the Oracle Essbase Database Administrator's Guide