Part 1 on all tables, succeeded.
Code:
Dim xTbl As Table
Dim aCel As Cell
Dim oRng As Range
For Each xTbl In ActiveDocument.Range.Tables
For Each aCel In xTbl.Range.Cells
If aCel.Range.Characters.First = "(" Then
aCel.Range.ParagraphFormat.RightIndent = InchesToPoints(0.04)
Else
End If
Next aCel
Next
Application.ScreenUpdating = True
Application.ScreenRefresh
DoEvents
lbl_Exit:
Set xTbl = Nothing
Set oRng = Nothing
Exit Sub
On Error GoTo 0