Multiple Personality Disorder

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Now I know people suffering from MPD are capable of great feats with regard to physical strength & unconciously gathered information of their surroinding & peroplke around them. But tell me this, can they perform such acts that they have had no formal training consciously at all? For example speak a language they have never had contact with before? Or Maybe perform an art (say dancing) which they have had no formal training at all before? Just curious :)