Select All 

    Select All  activates all items on a page, or  highlights all text 
 in a story. 
    The operation of Select All depends on which tool is currently
 selected. If the Item tool is currently selected, Select All activates
 all items within the current  page. If the Content tool is currently
 selected, Select All highlights text within the active text chain.
    Select All is dimmed if the Item tool is selected and there are no
 items on the current  page, or if the Content tool is selected and no
 text box is active.
    The keyboard shortcut for Select All is Cmd-A.