Fade in and Out settings - advanced options

It would be nice to be able to specify exactly how fast the fade in takes place and how long the object remains in view before it fades out.  For example, I'd like the fade in to happen much more quickly than the default fade in, as it is too slow before the object displays.  So greater control on the fade in and fade out option would be nice rather than the currently method of setting the time for the entire fade in and out.  I've tried changing the duration of the exiting fade in and out but the fade in is the same slowness.    The reason is I would like user to click on a static element and have it play a larger animated version of the element.  And I want to use a lot of static elements on the screen. Because kids will keep tapping elements quickly, I need the elements to fade in quickly, display object for longer than the fade before they fade out.