Solution : https://service.sap.com/sap/support/notes/1495886 (SAP Service marketplace login required)
Summary : 
      Users managing Persistent Staging Area (PSA) requests lack mass select/deselect functionality due to a programming error. This impacts various SAP NetWeaver BW versions, each requiring specific Support Packages to address the issue: SAP NetWeaver BW 7.00 needs SP25 (SAPKW70025), BW 7.01 requires SP08 (SAPKW70108), BW 7.02 calls for SP05 (SAPKW70205), BW 7.11 necessitates SP05 (SAPKW71105), and BW 7.30 demands SP01 (SAPKW73001). Implementations should also reinforce SAPLRSSM status 2600 with new function keys via SE41 for enhanced request management. Preemptive notes may provide preliminary versions before full release.
Key words : 
shift+f4                      sela       select allshift+f5                      seln       deselect allafterwards, software component   sap_bw                        business inform, solution sap netweaver bw 7, sap netweaver bw 7, persistent staging area, delete request reason, manual post-implement, release 700          sapkw70024 - sapkw70024, release 701          sapkw70105 - sapkw70107, release 702          sapkw70203 - sapkw70204
Related Notes : 
       
| 1471463 | SAPBWNews NW BW 7.01 ABAP SP08 | 
| 1468668 | SAPBWNews NW7.0 BW ABAP Support Package 25 | 
| 1450990 | SAPBWNews NW BW 7.02 ABAP SP05 | 
| 1392433 | SAPBINews NW7.11 BW ABAP Support Package 05 |