The second easiest thing to do is to buy a second Traeger. Everyone needs at least one Traeger, some of us have several.
The third easiest is to install transfer switches as Muebe suggested. Since the SSii doesn't use the same temp sensor that makes it easier.
But the easiest thing to do is to show your wife how to operate the SSii.
Prep the grill for cooking (add pellets, foil drip tray, ect.)
Plug in the grill.
Plug in the temp sensor; clip to the center bar of the food grate near the left side.
Press the power button to turn the controller on.
Use the up or down arrow keys to change the desired cooking temperature displayed in the lower display.
Retrieve the food and adult beverages from the kitchen, returning to the Traeger in 10-15 minutes.
Clean the grate with a brush.
Place food on grate and cook till done.
Serve.
Yum!