1. Set up the resource and widget.
2. On the widget page, go to the widget tab and click 'COPY THE WIDGE CODE TO THE CLIPBOARD'.
3. Open your site on 1C Bitrix in edit mode. Then open the page on which you want to place the widget,
and select the source code view mode.
4. In the source code of the page in the desired place (for example, at the very end), paste the copied code of the widget.
5. Save the page and as a result, the widget itself will appear on the inserted code.