You can create an opening by clicking on the Manage tab and under Openings when you are viewing your applicants. Openings allow you to organize the applicants in your account. To add an opening within your company, click "+ new opening" on the left hand side of your screen.
Enter in the name of your opening and select a position from the list on the right hand side of the screen. You can also select if you would like to set a close date or automatically archive old applicants.
Once you have completed all fields, click "Save".