Copy a pose

I've got to be doing something wrong here.

I want to copy the entire humanoid pose on the first frame of an animation clip and paste it into the last frame of the same animation clip.  

Copying and pasting the pose using the Copy and Paste Pose buttons does not work the way I want

It pastes the hip, hand, and foot IK, positions in global space which makes zero sense to me.

It would be way more useful if everything but the hips was in local space so the pose is not dependent on a physical location.

Selecting just the rotations manually and copying and pasting the keys in the clip editor is extremely tedious and time-consuming, very error-prone, and impractical with a lot of animations.

Like I said I'm operating off the assumption I'm making an obvious mistake.  However, I've spent a few hours on this and haven't gotten anywhere.

Your help would be appreciated.