A good day

I want to use FIND method instead my
old FOR EACH method in my code , I
think (and I have read) it will work faster .

Actually , my code look so :
......
With FromWks1
Set myRng1 = .Range("AT20:BW20")
End With
.........
For Each myCell In myRng1.Cells
If myCell.Value = True Then
With FromWks1
.Cells(myCell.Row, myCell.Column).AutoFill _
Destination:=.Range(.Cells(myCell.Row, myCell.Column), .Cells(44,
myCell.Column))
.Range("A1:N1").Copy
.Range(.Cells("1", myCell.Column), .Cells("14",
myCell.Column)).PasteSpecial , _
Paste:=xlPasteValues, _
Transpose:=True
........... another actions ...
End With
End If
Next myCell

Please very much to provide me this code ,
which shall use FIND method instead actually
method I use ; I need FIND to look only in my
range ( myRng1 = .Range("AT20:BW20") ).

Many thanks in advance !