Web Dynpro ABAP Table in runtime

Hi,

I have an ui table that has 3 table columns but in runtime i want to add 3 table columns more for it i use add_grouped_column( lr_column ). but when i do a test i see that the 3 table columns that i want to add in the last of table is in the begining. How can i do that the table column that i add is created in the last of table?

Thnx.