Solution : https://service.sap.com/sap/support/notes/615180 (SAP Service marketplace login required)
Key words :
express maximum line length explicitly, sapscript split screen editor translations, form edit_text_format_textlines tables line, sktu_global_editor-lwrkobj-targetlang laspez, split screen editor, sapscript editor reason, function modules edit_text, long text objects, sktu_global_editor-target_laspez maxlength, sktu_global_editor-maxlength linewidth
Related Notes :
575346 | Change to FORMAT_TEXTLINES for Asian languages |