Solution : https://service.sap.com/sap/support/notes/42763 (SAP Service marketplace login required)
Key words : 
subdirectory /usr/sap/trans/eps/, '/usr/sap/trans/eps/, additional key words ocs, tp addtobuffer <ta> <sid>, tp import <ta> <sid> 7, sap online support system, abap program rsepsupl exists, sap patch manager, abap program rsepsdol, remote function call
Related Notes : 
       
| 355730 | CSC-ABPL: Asian Best Practice Library 600 | 
| 207404 | CSC-ABPL: Asian Best Practice Library 5.0.0 | 
| 37987 | AS/400: Importing transports |