It isn't an option on any Xerox device to view it in CWIS, oddly, it can be done on Fuji-Xerox controllers like the 560, C60,7120.
It can be done in the driver, either File > Print > Properties, or Start > Devices and Printers > Printing Preferences
Pick the 3 dots / More / Menu icon and select Completed Jobs in the pop-up. (Annoyingly, newest job is the last one and not the first)
This is only available if the driver is setup for Bi directional communications.
I have a 7556 and a 7970 that currently show active jobs on the WebUI but I can't seem to find a processed or completed jobs list. Is this list only accessible through the control panel on the copier itself or is there a way I can find it on the WebUI? It's really useful to go through the list incase of any print job errors to see what might be causing the problem instead of having to go to the actual copier itself to view the list.