In our table all products shows by default. But if you want to change all products to only stock products will be shown in the table then you need to change it in the shortcode setting. Since 4.2 version : (Dashboard > PRODUCT TABLE > All Shortcode/Add New Shotcode > Condition Tab) and select Yes(Only Stock) . Finally save the shortcode post .
For 4.1 and previous version : Go to shortcode generator (Dashboard->Product Table->Shortcode Generator) . After clicking on the conditions tab you will see a drop-down named “Only Stock Product”, you can disable/enable from here. Or you can do it by editing the shortcode also. Just add the attribute and value only_stock=”no” inside the shortcode.