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Did someone tell you to clone something in oreder to reach some goal? (like scrolling block). If yes, tha person who told you to do that meant the following:
clone a module, or mayby only a block. Simply put this means making a copy of something and changing it's sql, name, mayby functions in the script, etc. That way your clone wont cause any conflicts beacause of simular tables and functionnames.
I hope this helps a little.