Objects Alignment

I have a row of 5 buttons (a horizontal nav bar) and I'd like to have the group of objects centred on the page but I'm having trouble trying to find the alignment that will align a group of objects to the page. I've tried different Horizontal and Vertical positions in the alignment popup but they either end up in a pile or spread right across the page. I just want the group align, like this to make sure it's in the middle.

Which alignment set up is it? Thanks.

To center an array of buttons on a page (make sure that all layers are active:

• Select all menu buttons
• Menu select Arrange > Group.
• With button group selected, menu select Arrange > Alignment (or Ctrl+Shift+L).
• Click the "Within" radio option Page(s)
• Horizontal positions: Align centrally
• Vertical positions: No change
• Click the Apply button