Hello,
You need to create a custom sidebar in Dashboard > Sidebars;
Then add the Recently viewed widget to this sidebar;
Next, create an HTML block in Dashboard HTML blocks: https://xtemos.com/docs/woodmart/html-blocks-2/
Then add a Widgetized sidebar element or widget and choose your custom sidebar.
Finally, choose this HTML from the Extra content block: drop-down in the product settings, you will also find the option to set the location of this block on the product page: https://xtemos.com/docs/woodmart/product-page-options/#local_settings
If you have any questions please feel free to contact us.
Best Regards