To reset upon command completion:
Choose Archiver > Preferences and click General.
In the “When a command completes” section, choose “Reset after done”.
You can set Archiver to reset automatically when a command completes, skipping the option to drag out, export, or show the files in Finder
Choose Archiver > Preferences and click General.
In the “When a command completes” section, choose “Reset after done”.