+1
the site says:
Why multiple instances of the widget is not available?
There can be conflicts and undesirable behaviour when more than one instance of the random quote function call is used in the same page, especially with the ajax refresh turned on for all the instances. It is for this reason the multiple instances of the widget is currently unavailable. For the same reason, it is not advised to use the quotescollection_quote()
function call more than once in the same page. And for the same reason, the ajax refresh option is not made available for the shortcodes. These limitations shall be overcome in a future version of the plugin.
but, we need to put the widget on different sidebars (used in different pages)