Vertically centers the selected objects. If only one object is selected in Draw or Impress, the center of the object is aligned to the vertical center of the page.
Na barra de ferramientes Alliniar (LibreOffice Impress, LibreOffice Draw), faiga clic en
Centrar horizontalmente (pa marcos)
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.