On the products page, you will see a list of your products. Click next to the name of each product to select multiple products. And then click on edit selected.
A menu will pop up asking exactly what values do you want to edit. Select the necessary fields that you want edit.
This will take you to a new page with the selected products and fields. From here you can change the fields of each product seperately. If you want to give all the selected products the same values, click on the link "Apply values to all the selected products".
You will now see a list with the selected fields. From here you can give the same value to your selected products. CLick apply.
