On the Data menu of the Data tab, choose Consolidate.
From toolbars:
Consolidate
Fankishinii
fankishinii deetaa gamteessuu barbaaddee fili.
Hammanga gamtoominaa
Hangii man'ee gamteessuu barbaaddee agarsiisa.
Hammanga deetaa maddaa
Specifies the cell range that you want to consolidate with the cell ranges listed in the Consolidation ranges box. Select a cell range in a sheet, and then click Add. You can also select the name of a predefined cell from the Source data range list.
Shrink / Expand
Click the Shrink icon to reduce the dialog to the size of the input field. It is then easier to mark the required reference in the sheet. The icons then automatically convert to the Expand icon. Click it to restore the dialog to its original size.