To keep the job in the queue listing after it's been printed, go to Printer Properties. Click the Advanced tab and tick "Keep printed document"
To stop printing, select the printer in Devices & Printers, then click See what's printing on the command bar. Click the Printer menu, and then click Pause Printing. To resume printing, click Pause Printing again. From the same menu you can also pause and restart individual documents.
To set the printer offline, double-click the icon of the printer in Devices & Printers. The status of the printer will be shown as either "Printer: Ready" or "Printer: Offline". Click on "Printer: Ready" and the Printer menu will appear. Click on "Printer" in the menu bar and tick "Use Printer Offline." This action will change the printer from online to offline. Reverse this to go back online.