Using Parameter 12 of the device's advanced options, you can choose if you want your dimmer to turn on to full brightness (100%, which is the default setting) or a custom maximum brightness once you double-tap the upper paddle.
And to customize maximum brightness, refer to Parameter 11. This means that you won't be able to add brightness beyond the set value (so that if Parameter 12 is set to 0, Parameter 11 is automatically disabled).
Here's how to access your advanced settings in Vera and SmartThings. Unfortunately, Wink's interface doesn't allow for advanced options, but Wink users can still customize their dimmer's LED indicator - here's how.
Let us know if you have any questions about the double-tap feature!