Quote - Magnets are deleted with props...

If that's so, then things have changed since P6 (the only version I have), magnets are most certainly not deleted with props in P6. The one exception to that is if the prop is parented to a figure. Deleting a figure will delete everything parented to it, including props, and anything parented to those props. As you have said that deleting the Shell then loading a new instance of it causes the magnets to be renamed, perhaps you will forgive me if I remain a little sceptical about whether things really have changed since P6. Saving the scene after deleting the Shell, then examining it in a cr2 editor to see if the magnets are still there or not should settle the matter one way or the other.

Quote - I treated it as a experiment with ERC and magnets. I noticed, that some figure morphs, work much better with magnets then with normal morph targets. For example legs or arms lenght.

Another place where morphs are a bad idea is for implementing rotations, as morphs can only move deltas in straight lines.

Quote - Magnets would be very useful tool unless problem with names, and no access to falloff zones data via Poser interface. ctrl c/v does not works with falloff zone and manual setting on graph editor never give the same results.

In the pp2, the falloff curve is near the bottom of the 'sphereZoneProp', and looks like this:

        newFalloffCurve
        falloffCpt 0 1
        falloffCpt 0.2 1
        falloffCpt 0.8 1
        falloffCpt 1 1
        endFalloffCurve

With a saved pp2, you can use a text editor to copy the falloff curve and paste it into a different magnet. Yes, it's a PITA, but at least it can be done. The falloff curve itself is always symmetrical, as opposed to the Zone which can be shaped by scaling, when the Zone is scaled the falloff curve scales with it.

One problem with magnets (unless they fixed it since P6) is the Zone geometry. Even if you use a null.obj, after a save and reload of a pz3 (scene) the original sphere geometry will be restored to the Zone.