Notes:
target="_blank"
Click link
on the properties palette. Select smart link from the "link type" drop down. Select blank and click HTML at the bottom left. Enter the following code in the inside link tab...
onclick="window.open('./mypage.html','','toolbar=0,location=0,status=0,menubar=0,scrollbars=0,resizable=0,width=300,height=200,top=40,left=30')"
Change mypage.html for the path and name of the target HTML page.