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If you can break the screen into contiguous rows used by different formats ..
Something like this
TopRec rows 1-5
MidRec rows 6-22
FootRec rows 23-24
you write two of these (DDS contains OVRLAY keyword) and exfmt the third
You can perhaps use DDS Windows to define parts of the screen
Please elaborate on your question. We don't know what you're trying to do.