How to build a cube with incrementally updating by year

[damzI]

I have a large cube (about 6 gigs) and have partitioned the cube by the Date Dimension.
I want to be able to incrementally update it by year, instead of building the whole cube at once.
The issue I am running into is the the incremental update checkbox gets disabled when I set up the partition :(
Is there any way I can build my partitioned cube in 2-3 separate builds (by year).

Thanks in anticipation...
- D

[stan.parker]

I've been building Transformer cubes since 1997 and I'm not aware of any way to partition a cube in 2-3 separate builds.