Solution : https://service.sap.com/sap/support/notes/542605 (SAP Service marketplace login required)
Key words :
table controls require special handling, field appears grayed-, statement modify screen, final field attributes, required entry indicator, required entry field, field attributes, entry option, output field, modify levels
Related Notes :
| 551893 | Error 00344 when processing a batch input session |
| 551462 | FB01: Add. data screen although required entry fields hidden |
| 547782 | ME11: Error message 00055 |
| 19466 | Downloading SAP kernel patches |