Solution : https://service.sap.com/sap/support/notes/167633 (SAP Service marketplace login required)
Key words :
step loop/table control field, step loop/table control, additional key words shd0, screen flow logic, step loops, respective fields, standard variant, release 46b, hot package, release 45b
Related Notes :
| 175576 | Transaction variants as of Release 46A |