You can save your jobs in order to reuse them at a later time. Saving a job is simple: just click the "Save" button in the top panel of the window.
Analysis jobs are saved in files with the ".analysis.xml" extension. These files are XML files that are readable and editable using any XML editor.
Opening jobs can be done using the "Open" menu item. Opening a job will restore a job building window from where you can edit and run the job.