A solution for now would be to use a relative timeline and set the properties as demanded and the run the timeline instead of the setProperty in the original post. This obviously is limited to fixed values that have been set in Hype before exporting.
Another approach is the use of CSS animation (look that up) through adding the animation class dynamical when needed. Also sort of fixed as the CSS rules are mostly also written in advance.
Last resort use a third party library like TweenLite (look that up) to be fully dynamic. The shame in that is that we need another engine even though potentially we got one fully capable under the hood.