Hello,
Thank you very much for choosing our theme and for contacting us.
If you want to rove the whole sidebar, you need to set “Without” in the sidebar section in the page settings: https://xtemos.com/docs/woodmart/options-for-pages/
If you want to add other widgers, create a custom sidebar, set it for the page in the Sidebar section, and fill it with the widgets in the Appearance > Widgets, more detailed instruction is here: https://xtemos.com/docs/woodmart/widgets/
Best Regards