Ability to control zoom programmatically

We have the need for an entirely customized UI, which would include hiding the zoom and page control toolbar. We are able to jump to page using the `gotoLocation` view API. However we need the ability to set zoom level programatically based on our own controls. `setZoom(currentZoom + .5)` or `setZoom(70%)`. Additionally we would need the ability to reset zoom to fit page and fit width. Basically a way to recreate the built in controls programatically. Is anything like this possible with the current exposed APIs or is it planned?

Thanks for the input!