Select Dimensions

1. Open config.xml for editing.
2. Insert blank XML template for default slice after <dataSource> block :
   

   <config>
     <dataSource type="...">
       ...
     </dataSource>
   
     <defaultSlice>
       <axes>
         <axis name="rows"> </axis>
         <axis name="columns"> </axis>
         <axis name="pages"> </axis>
       </axes>
       <measures> </measures>
     </defaultSlice>
   
   </config>

3. Add rows data: insert into <axis name="rows"> tag <hierarchy> block(s) with dimension name and hierarchy name, you may add as much fields as you like:
   

   <axis name="rows">
     <hierarchy>
       <dimensionName>[Country]</dimensionName>
       <hierarchyName>[Country].[Country]</hierarchyName>
     </hierarchy>
   
     <hierarchy>
       <dimensionName>[Color]</dimensionName>
       <hierarchyName>[Color].[Color]</hierarchyName>
     </hierarchy>
   </axis>

4. Add columns data: insert into tag <axis name="columns"> <hierarchy> block(s) too:
   

   <axis name="columns">
     <hierarchy>
       <dimensionName>[Category]</dimensionName>
       <hierarchyName>[Category].[Category]</hierarchyName>
     </hierarchy>
   </axis>