n_r_data_set->n_sx_version_20a_1 table interface

Can anyone tell me how the n_r_data_set->n_sx_version_20a_1 structure is used in a table interface? I have been able to take a look at it contents in the debugger and see that it holds all data pertaining to the cells in a table. What I want to do is delete records from this structure but I don't know if I am allowed to do so since it is a "deep structure" and not a standard table.

Please Help!!