We just pushed out a bunch of fixes and new stuff.  The new stuff includes:

• Automatic filler text when you add Text Area widgets.  It keeps the filler text until you change it - hopefully this will make it easier to designate text areas in your mockups when you don't want to come up with something brilliant to write in them.
• Resizable pages panel.  A lot of people with a lot of pages have been asking for this one.  You should now be able to resize the pages panel by hovering your mouse over the bottom edge of the panel, clicking, and dragging up or down.
• Selecting tabs in tab containers, links in link bars, buttons in button bars, etc.  Just put an asterisk next to the element you want to appear in a selected state.  
• Improved interaction with menu items.  The cursor should change when you hover over a clickable menu item