Solution : https://service.sap.com/sap/support/notes/843289 (SAP Service marketplace login required)
Key words :
front end editor solution restriction, previous front end editor continues, front-end editor, back end releases, abap editor control, abap editor, text editor, dllab4_data\abap, 40 patch level 10, note 930742 lists
Related Notes :
| 930742 | Support for AB4 control in ABAP editor |
| 891549 | FAQ of the new ABAP editor as part of SAP GUI |
| 454939 | SAP GUI for Java limitations |