David,
For knowing the right table or include, please go to SE11 and open the table "CUAND_CE_IA_RT" then you will see two includes. You can add addtional fields to the INCL_EEW_CUAN_CE_IA_ROOT include.
If you want to segmentation, first you have to adjust or create a HANA view and then bring it into segementation via customizing (SPRO).
Thanks
-Bharath