Elektron Musical Instruments

Hi,

I'm thinking about getting a machinedrum for myself.  My primary 
concern is about how easy or difficult it is to save and recall 
projects (songs, patterns and kits) at the drop of a hat.  I write a 
lot of music and if the machinedrum is going to participate in the 
process it is going to need to be quick on its feet.  (Current 
duties are filled by Reason's Redrum, which has the benefit of being 
able to open with one file every aspect of a song's drum part.)

I've read the manual (downloaded from the Elektron web site), but I 
missed any information that might have been in there about 
archiving, loading, and arranging patches (in synth terminology) on 
the machinedrum.

If someone could explain not only what it is technically capable of, 
but how you deal with the issue in the real world, it would be 
immensely helpful.

Thanks.