Choose the Mark... menu item to place an element
  generation under review.  CMS then places the generation
  on a review pending list.

  Mark changes the review status of the element generation
  from "none" to "pending" and then places the generation
  on a review pending list.

  You can associate a review comment with the generation by
  using the Review Comment... menu item.  You can then view
  comments made by other users by doing the following:

  1. Click on an element generation.
  2. Pull down the View menu.
  3. Pull down the Expand submenu.
  4. Choose the Children menu item.

  In the Review view, "children" are defined as the review
  comments associated with the given generation.

  Typically, a developer will replace a reservation, thus
  creating a new generation, which is then marked for
  review.  Project members examine the new generation and
  add their comments to the review. One developer is
  usually responsible for the generation; that developer
  assimilates the various comments and accepts or rejects
  the generation.  If the generation is rejected, the
  developer may reserve the generation to correct the
  problems, and then accept the generation.

  You can use one of the following menu items to change the
  review status of the element generation: Accept...,
  Reject..., or Cancel....

  The Mark... menu item can be used only on element
  generations that are not already on the review pending
  list.