Use the Mass Update action to update several records with identical data. 

1. Select the records you want to update in a list view, or by creating a new job. 
2. In the Action Launcher (top right in list view, or the next window in the DAP Job modal), select Mass Update and click Next.
3. In the next window, select a field to update and enter the new value. Enter a set value to add to all selected records, or click Insert Field Variable to use a field variable. 
   If you leave a value empty, the field will be cleared on the records. 
4. Add more fields to update with the + Add Field button. Remove fields with the Delete Field button. Click Next.
   
5. In the confirmation window, check the changes you will be making and click Start.

If you ran the action from a list view: once the progress bar is at 100% completed, click Finish to return to the object overview.
If you ran the action as a Job, you are returned to the Job Overview, where you can view the job results information via the Info button.

You have now updated all selected records.