Here is another useful verbiage from the SAP
Help on the situations when you can change the Info Cube or the RFC destination in the Planning Area:
You
use an existing InfoCube as reference for a new InfoCube, which you add further characteristics and key figures to. You copy
the planning area, which is connected to the reference InfoCube and assign the new InfoCube to the new planning area. In this
way, you can use all the objects, which were available in the original planning area, in the new planning area without
further Customizing effort. You also have the possibility to use the additional characteristics and key figures.
You
already have a SAP BW System, which is used company-wide, and also want to provide the InfoCubes there which you access with
SEM-BPS. Therefore, you transfer the InfoCubes that already exist in the SEM System into your central BW System. You also add
a corresponding RFC destination to the settings of those planning areas, which previously accessed these InfoCubes within the
SEM System.
You operate several SAP BW Systems and have transferred an InfoCube into a system which is based on high
-performance hardware. In this case, you change the setting of the RFC destination in the planning area and can profit from
the improved performance without further changes.
Anyone out there who has done this for real?
I
thought it was a cool thing.. and to see if some one has actual experience and some tips on it?