Update row selection logic in 'Manage Portfolio' section of 'app.py' to use 'display_frame' for adding selected rows to custom export, improving data handling and user experience.

app.py

@@ -1996,9 +1996,9 @@ if selected_tab == 'Manage Portfolio':
                             st.session_state['display_frame'] = st.session_state['export_base']
                     
                 with add_rows_col:
-                    select_custom_index = st.multiselect("Select rows to add (based on first column):", options=st.session_state['export_merge'].index, default=[])
+                    select_custom_index = st.multiselect("Select rows to add (based on first column):", options=st.session_state['display_frame'].index, default=[])
                     if st.button("Add selected to Custom Export"):
-                        st.session_state['export_base'] = pd.concat([st.session_state['export_base'], st.session_state['export_merge'].loc[select_custom_index]])
+                        st.session_state['export_base'] = pd.concat([st.session_state['export_base'], st.session_state['display_frame'].loc[select_custom_index]])
                     st.session_state['export_base'] = st.session_state['export_base'].drop_duplicates()
                     st.session_state['export_base'] = st.session_state['export_base'].reset_index(drop=True)