I'm not sure about tab formatting - this sounds like more of a word processing function than a graphic design function (unless I've misunderstood what you're trying to do).
But there are two ways to align a column of objects. You can create a guide by clicking on the canvas ruler and dragging a guide into the screen. You can also select all of the element you'd like to line up and press ctrl-alt-1 (align left), ctrl-alt-2 (align center) or ctrl-alt-3 (align right) to line up a column of objects as you wish. All nine numbers respond to ctrl-alt-# in one way or another - I use these keys constantly when designing in Fireworks