If you don't check those boxes, the Pose will only include rotations
(xrot, yrot, zrot) and translations (xtran, ytran, ztran) on body parts.
So it won't affect morphs on the target figure. 

One complicated exception: If the target figure has some ERC coding
that causes its own morphs to be moved by rotations, like muscles
that bulge when the leg bends .... then those morphs will be affected,
because the target figure is setting those morphs in response to the
rotations from the pose.  But the pose won't directly change any morphs
unless you've checked the Morphs box.

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