Is there a way to trigger the “hover” state of a button through hovering a completely different object? Let’s say there is a rectangle in the top-right corner and if I hover it, the link state of a button in the button-left corner changes its style to “hover”.
If that method does not work for you, try using a mouse over and a mouse out action with javascript to assign the background colors.
//mouse over (hover)
var x = hypeDocument.getElementById('MyButton');
x.style.background = "yellow";
//mouse out (UnHover)
var x = hypeDocument.getElementById('MyButton');
x.style.background = "#F0F0F0";