Structure as last field in Dynamic Int.table?

Hi,

I am creating an dynamic internal table as like the following

  call method cl_alv_table_create=>create_dynamic_table
    exporting
      it_fieldcatalog = pt_fieldcat
    importing
      ep_table        = g_hts.
  assign g_hts->* to <i_hts1>.

but while creating the dynamic internal table i need to add CHKBX field in the last with type as mentioned below

types: CHKBX        type lvc_t_styl.

"--> Here lvc_t_styl is structure.

Any info how to create a field catalog for this?

a®