Hi dirgeOmatic, in short: no.
But you can sort of make it work. Flippng an Image is easy: just scale along it’s local X-axis by -1.
You cannot flip the Viewport, but you can flip the Camera View, by scaling the Camera by -1 along it’s local X-axis.
If you set two Keyframes for the Scale you can easily switch between the two views.
However, at the moment this doesn’t seem to work in 2.80. at least I couldn’t get it to work yet…