Sub BoldTableHeaderVertMergedCells()
Dim tbl As Word.Table
Dim cel As Word.Cell
Dim sel As Word.Selection
Dim nrCols As Long, nrCol As Long
Set sel = Selection
nrCol = 1
If sel.Information(wdWithInTable) Then
Set tbl = sel.Tables(1)
nrCols = tbl.Columns.Count
Set cel = tbl.Cell(1, 1)
cel.Select
Set sel = Selection
sel.MoveEnd wdCell, nrCols - 1
sel.Font.Bold = True
End If
End Sub