1.1. The bitmap in the toolbar.
1.2. Right-click on the blank area of the toolbar
1.3. Click "Customize" to view the bitmap name
1.4. Get the bitmap of the electrical pipeline layout: appl_routing_el_base
2.1 Bitmap search in the opened UI interface
2.2 Add in the last line of {$UGII_BASE_DIR$}\ugii_env_ug.dat: PRINT_DIALOG_BITMAP_NAMES=1
2.3 Open NX again
2.4 Open the "Stretch" function interface
2.5 Find the bitmap that appears in the corresponding function in the menu->help->log file.