Exporting to RED can be invoked through the command line.
redexport -r <repo name> -c <category> -m <model> -v <version> [-g <group>] -o <xml file> [-f] (Force overwrite)
Example
java -Xmx512m -XX:MaxMetaspaceSize=256m -splash: -jar WhereScape-3D-HEAD-bundle.jar redexport -r "Local repository" -c "RED design" -m "For RED" -v "1.0" -o "C:\temp\export_to_red.xml"