Can you check in the zview on the event EH_ONCHOOSE do call the outbound plug of the window?
* navigate via viewmanager:
DATA: lr_window TYPE REF TO cl_bsp_wd_window.
lr_window ?= me->view_manager->get_window_controller( ).
lr_window->call_outbound_plug( iv_outbound_plug = 'WHATEVER' ).