Can the Breville / Sage Oracle grind and brew simultaneously? The Breville / Sage Oracle has a grinder, steam wand and espresso maker (not sure if there is a more technical term for the part where you click the portafilter into) in one machine. Online advertisements show it can steam and brew at once because of the double boiler.

I am more interest in brewing a few shots in succession*. Can this machine grind and brew at the same time? I'm assuming one has two portafilters at hand. 

*I know the grinder heating up may cause the grind size to change.
It is capable of doing this, but the machine only comes with one porta filter. 

In fact, my Barista Express is capable of grinding while brewing, but again only 1 porta filter. You would need to buy a second one to do both.