If you are creating you own custom morphs with magnets, you may want to check out ** svdl's** "SpawnCharacterP6 update" Python script. It consolidates all expressed morphs in the figure into one morph for each body part, then writes an appropriate INJ and REM pose for the morph. It requires P6 or above, and does not work on all figures, but I think it would probably work on Aiko 3.

I find it saves a lot of time and effort!

You will need to spawn morphs from you magnets, then delete the magnets, as "SpawnCharacterP6" does not record the influence of magnets. If you need to spawn morphs for a lot of body parts at once, you can use D3D's "Spawn FBM" not everything in this script works in P6, but the spawning morphs part does. There are also a lot of other great py scripts at D3D's site.