In an open model, from Task Areas, select Manage Allocations, then Driver Selections.
The Driver Selections screen is displayed.
Select a POV, and then click Go.
Select a Layer.
On the Driver Rules tab, under Stage, select the model stage.
The driver dimension for the selected stage is displayed in the first column, and all dimension members within that driver dimension are listed below.
Under the dimension, select the parent level or Level-0 members at which you want to apply the default driver. The parent level may be at the top of the stage, or a parent for a portion of the hierarchy.
Under Driver, click the cell to display the selector icon , or click Add to select a driver for the parent dimension from the Common Selector, and then click OK. See Using the Common Member Selector.
When the driver is applied to a parent, the same driver is automatically inherited by all descendants. To show the driver is inherited, it is grayed out.
Optional: To select a driver other than the inherited driver for one member, perform the following steps:
Expand the parent dimension.
Select the member that requires a different driver.