Vertically centres the selected objects. If only one object is selected in Draw or Impress, the centre of the object is aligned to the vertical centre of the page.
To access this command...
From the menu bar:
Choose Format - Align Text - Centered.
From the tabbed interface:
Choose Text (text selected).Home
From the sidebar:
Select Properties - AlignmentParagraph deck.
From toolbars:
Centred
To align the individual objects in a group, choose Format - Group - Enter Groupdouble-click to enter the group, select the objects, right-click, and then choose an alignment option.