If you want complete control of the position of the character then you need to make sure the pose contains body translation information. Poses saved normally from Poser don't so you have two choices. You can hack the pose file and write in the body translation information by hand, or you can do yourself a favour and go to my artist page and download my PoseSave python script, which will allow you to save poses with body translation information (as well as saving morph setting poses, poses with ERC info etc).

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