How do I change citation to Author(Year) in Pages?

I have just started using Endnote in Pages (previously used it for a number of years in Word for Windows). I am trying to change the in-text citation from (Author, Year) to display as Author (Year) but cannot find an option to do so in Pages. I am using Endnote version x7 and Pages version 5.2. I have the Endnote plug-in installed and have no issue inserting citations in my document. My problem is purely one of formatting. Can you help?