Cobol I/O Modules and Blocking -- MIDRANGE-L

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Hi all,
  We have a system where the vendor has coded all file i/o into
dynamically called
modules.  These modules have all possible file access methods available
(sequential,
random, input, output, i/o).  The problem comes when these module are
used to process
a file sequentially and it would be a great benefit to block the file,
but because the
system sees the other processing methods defined in the module, it
disables any blocking
paramaters we try to use.  Short of rewriting these modules, (there are
hundreds of them)
does anyone know a way to enable blocking using these modules?

TIA
Terry Grider

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