IDOC CREMAS - withholding tax

Hi Experts,

i need to distribute idoc CREMAS with data related to "withholding tax"

(table LFBW).

When i distribute this idoc i can not see these data in outbound, do you know if i need to do something special to aktivate this part? and do you know what is the segment related?

how can i send these data with the whole IDOC CREMAS?

Thanks for your help

Boris