The image shows the Add New Job(s) to Start dialog box. An "X" icon to the right of the shaded title bar is used to close the dialog. The Choose new on job(s) that will start when the pipeline is run area shows one job, with an "X" icon next to it. You can click the icon to remove the job, should you want to do that. The job that was selected and is shown in the area is the Application-Extension-Package job. The Cancel and Save (highlighted) buttons are at the bottom right of the dialog.