Setting Dimension Density and Order
The Performance Settings tab enables you to set dimensions as sparse or dense and set their order of precedence.
To manage performance settings:
Select Administration, then Manage, and then Dimensions.
Select Performance Settings.
For each dimension, set its Density as Dense or Sparse.
See About Sparse and Dense Dimensions.
Set the order of precedence by selecting a dimension and clicking 
or 
.
See About Reordering Dimensions.