can't find the way to work with "copy bone driver" and "retarget mesh driver"

[Rose Odimm]

Diffeomorphic version 3/8/2021

Blender 2.93.1

First of all blender doesn’t have ability to scale the armature to match the shape key like DAZ and when I import new model from daz to blender I will join it as shape key to an old daz model in blender that I already imported custom morph and favorite morph.

The problem is when change shape key to new character the armature not scale to match the new shapekey like in daz and that make the eyes controller and other face controller position mismatch and it distort the shape because of pivot point.

I try to fix the problem by replace old armature with new armature that come with new model that I join as shape to old model.

When I use copy props from old armature to new armature it work [the props slider appear in new armature but not working] but when I press “copy bone driver” nothing happen [old armature as selected new armature as active]

I’m not sure about ‘retarget driver button’ it popup error every time I select two armature and press it [Error no attribute 'Daz morphcats].

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*The reason I not use remove then add shapekey driver to new armature is because the Custom JCM and flexion morph will no longer work.

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[Alessandro Padovani]

Personally I understand nothing of what you’re saying. May be it’s just me but I guess some pictures and a more detailed explanation will help others too to understand what you mean and may be help you in return.

As for scaling in general, there are options in the global settings that you may find useful.

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[Rose Odimm]

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I want the mesh to use Armature 2 and transfer all of shapekey driver from Armature 1 to Armature 2 too.

I try to use these 3 button but I can’t find the way to make it solve the problem.
As far as I know after parent mesh to Armature 2 the copy bone driver and copy props button should copy all the driver from Armature 1 to Armature 2 and after that I should be able to drive the properties slider and the mesh start transform but it does nothing when I mess with slider but the slider from Armature 1 still transform the mesh although it is no longer the parent of the mesh.

[Thomas Larsson]

The Retarget Mesh Drivers tool was removed because it never worked with the new morph system. Depending on what you want to do, there might be better ways.

If you want to add new clothes to an existing character, use Change Armature + Transfer shapekeys, cf. https://diffeomorphic.blogspot.com/2021/07/changing-outfits.html.

If you want to morph the character including the armature, use Import Custom Morphs. cf https://diffeomorphic.blogspot.com/2021/09/morphing-armatures.html.