In case you're using PHP-MySQL Bridge to work with your store DB, here you'll find the data that hadn't been posted to your store yet.
By using the built-in option you can make some changes for future data modifications.
But note, all modifications with the store data should be done by professionals only to prevent damage or loss the data.
When you are posting data to your web store then it will be posted with all changes that you have made before.
Please remember, any manipulations with data that have made in this sector of Store Manager will not appear in your current (local) database as long as you do not run the 'Get Data from Web' option again.