The old CODE DSU utility had various record format controls which allowed such functions as copy, paste, duplicate, rename, etc.
Unfortunately, many of these simple "usability" controls are missing from Screen/Print Designer in RDi. (At least, I can't find them!) So, the only solution is to resort to editing the source code. We could submit an RFE, but I suspect it would attract very little support since DDS and green-screen are regarded as obsolete.
Incidentally, you CAN elect to open DSPF/PRTF source with LPEX; either change the File Association preference, or just right-click member > OPEN WITH > LPEX Editor
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