You can ignore loading data to a dimension member.
To ignore member mappings:
On the Workflow tab, under Data Load, select Data Load Mapping.
Select a source value, and in Target Value, enter ignore.
For example, assume that a business user does not require extraction of data relating to Departments 101, 103 and 105. You specify an In mapping with the source values, 101, 103, and 105, and then for the target value, you specify ignore. In this way, data relating to Departments 101, 103 and 105 is extracted, but not written to the application in the Import Format option.