Align Top
Vertically aligns the top edges of the selected objects. If only one object is selected in Draw or Impress, the top edge of the object is aligned to the upper page margin.
Objects are aligned to the top edge of the topmost object in the selection. To align the individual objects in a group, choose Format - Group - Enter Group double-click to enter the group, select the objects, right-click, and then choose an alignment option.