How do you export sapscript layout sets?
Use ABAP program: RSTXSCRP
It will download and upload your sapscripts as a text file in your local disk.
How to copy SAP Script from one client (100) to client (200)?
Login to Client (100)
Goto SE38 or SA38 and execute the abap program: RSTXSCRP
Mode : EXPORT
Login to Client (200)
Goto SE38 or SA38 and execute the abap program: RSTXSCRP
Mode : IMPORT
or
Login to Client (200)
Goto transaction SE71 - Click Utilities -> Copy from client