Change Page size-ReCenter items each page

The current web page items are neatly centered.
Resizing the page larger puts all Items Left Justified.

What is the safe way to recenter items on every page:

Group (just to temp re-center all) or
Soft Group?

Basically I don't want to mess up the button rollovers and any other active elements on each page.

Sadicus no need to group or softgroup.

Simply select all the elements on your page then open the Alignment dialog.

Select Page(s) as the Within option. (see attached image).

Thanks for the reply,

Some objects are already grouped and lined up the way I want them.
Others are not grouped rows of evenly spaced objects and line up the way I want them.
They are centered to the page.

The page needs to be larger.

I want to "mass recenter" all the objects to the new page size.
including rows of evenly spaced objects using the align menu, but i need to keep all the objects together.

I would like to group all of the objects if possible with out ruining rollovers, then ungoup them when done.

Is there a way to do that? :)

I think grouping will mess up the rollovers, but soft group will cause the rows of evenly spaced objects to stack up on each other.