hovering over triggers

Just out of curiosity, is it possible to have a sort of "onHover" event for triggers? I have a dialog that's a selection dialog (there's a repeat generating a list of triggers).

To preview the contents of each item, I tried just using<xforms:hint><xforms:output ref="value"/></xforms:hint>
but I find the tooltip a bit distracting as it constantly changes size and position. So, I was wondering if there's a way to use a fixed output element to display the preview (where hovering over each trigger would set the value in an instance field, and the output element would display that set value).