Try a macro coded along the lines of:
Code:
Sub AddDept()
With ActiveSheet
With .Range("A" & .Cells.SpecialCells(xlCellTypeLastCell).Row + 1)
.Value = "Dept 7"
With .Font
.Bold = True
.ColorIndex = 3
End With
.Interior.ColorIndex = 6
End With
End With
End Sub
You could simply assign a shortcut key to the macro, without the need for a button.