Is it just the fiddly repetition that you object to, setting up many figures with a walk? In that case recording a repeatable mouse-click macro (with the JitBit software or similar) might save you a lot of grunt-work or Python script-hacking. Note that Poser doesn't have a macro recorder (think "Photoshop's Actions") of its own.

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Learn the Secrets of Poser 11 and Line-art Filters.