To make more extensive changes to placement settings, use the bulk edit feature.
In the main menu, click Campaigns.
Do either of the following:
Next to the campaign name, click … > Upload Excel QA sheet.
Click the campaign name to view the campaign details. In the upper right, click … > Upload Excel QA sheet.
In the Edit in Excel dialog:
Either drag and drop a file into the box, or click inside the box to select a file from your device or network.
(Optional) To verify that the updates were processed, click in the right of the top menu bar.