enable the zoom on hover
<var name="magnifier">
<var name="fullscreenzoom">20</var> <!-- Zoom for fullscreen (integer)-->
<var name="top"></var> <!-- Top position of magnifier -->
<var name="left"></var> <!-- Left position of magnifier -->
<var name="width">400</var> <!-- Width of magnifier block -->
<var name="height">400</var> <!-- Height of magnifier block -->
<var name="eventType">hover</var> <!-- Action that atcivates zoom (hover/click) -->
<var name="enabled">true</var> <!-- Turn on/off magnifier (true/false) -->
</var>