Sort ascending/descending functionality in ESS worklist

Hi All,

We have a requirement to give option of sorting in ascending/descending order based on WBS element(POSID) in ESS worklist. The webdynpro component and view for worklist is HRESS_C_CATS-V_WORKLIST. By default it displaying it in ascending order but descending option is not there.

Enabling sorting in ALV config does not help as it is sorting data for display only and actual internal table GT_UI_WORKLIST doen't gets changed which results in different WBS getting picked in Timesheet as it searches based on index in wd_assist->gt_worklist.

Is there any way to add sort ascending/descending capability?

Please help !

Thanks in Advance.