Dear Mostafa kiani,
You can create a new position in the layout file. Example: center banner position below breadcrumb position in the main-right layout
Please go to "\templates\sj_worldnews\layouts\main-right.xml", finding:
<position group="main" width="" colspan="1" column='yt_col1' style="ytmod" type="modules">breadcrumb</position>
=>
<position group="main" width="" colspan="1" column='yt_col1' style="ytmod" type="modules">breadcrumb</position>
<position group="main" width="" colspan="1" column='yt_col1' style="ytmod" type="modules">center_banner</position>
At that time, you can set the banner module in the center banner position.
Thanks
