The following videos show how to build MDX objects and queries within the SAP BusinessObjects Information Design Tool through real-life scenarios.
Custom Groupings: http://www.youtube.com/watch?v=ejmWrNMdzzs
Days Sales Outstanding (DSO): http://www.youtube.com/watch?v=5QeK7gZpl6Q
Time Comparison: http://www.youtube.com/watch?v=tatMjTF1ja4
Time Rollup: http://www.youtube.com/watch?v=3VCaopP-rQo&feature=youtu.be
Current Period Selection: http://youtu.be/AQpfpTXJrAY
Merging Two Dimensions: http://www.youtube.com/watch?v=eIwWscuOL8w&feature=youtu.be