Vadim Very Interesting all the points you had
1-In DEFAULT.LGF We received only changes members
2-Right with my formula if the value is 0 I will received nothing
3- I have no choice to pick your solution
*XDIM_MEMBERSET ACCOUNT = TRFL_W,TSFL_W
*WHEN ACCOUNT
*IS *
*REC(EXPRESSION = %VALUE%, ACCOUNT=TARGET )
*ENDWHEN
Because I have multiple values in the 1st XDIM_MEMBERSET ACCOUNT and the *REC is based depending of the ACCOUNT.Thanks for your light 