Preview Or Pre-render Feature Request

please read this
http://www.renoise.com/board/index.php?sho…7&hl=freeze
i need this feature too) but developers say that it will be implemented in future)

this feature will be one of the best. becuase cubase containe it now.
FX Freeze vst dont work as i wont and sime time dont work correctly. And native feature will be better.