You can update multiple content in one go via batch update.

Note: all content should be of the same attribute set

You can

Choose relevant content

1. From content list, filter by 'Attribute Set' ('Clothing' in this example)

2. Check relevant content by checking the checkbox on the content list

Choose batch update attribute

3. From the menu above the content list, choose 'Update attribute'

4. Click 'Submit'

Update content

5. From the content edit page

Check one or more field(s) that you would like to update, and make the change.

6. click 'Submit'