Essbase provides pre-defined Dynamic Time Series (DTS) members that you can use to dynamically calculate period-to-date values. If you no longer want to use a DTS member, you can disable the member.
To disable a Dynamic Time Series (DTS) member in an outline:
Select Outline, then Dynamic time series.
In the Enabled column corresponding to the DTS member that you want to delete, clear the check box.
Click OK.
“Selecting Dynamic Times Series Members” in the Oracle Essbase Database Administrator's Guide
“Using Dynamic Time Series in Partitions” in the Oracle Essbase Database Administrator's Guide