As it is now....
When Zoom to Selected Features is used for a single, point feature, the zoom scale is calculated as 1/20 the overall spatial extent of the layer.
In cases where the feature class has hundreds of thousands of features (e.g. Address Points), this zoom function loses all of its value.
I would like to see an option for a default, or maximum zoom extent setting in cases where I want to zoom to a single, selected, point feature.