This demonstrates the principle though it may need to be made more generic:
Sub Macro1()
Dim CellAdd As String
Dim CellToChange As Range
Dim AddText As String
AddText = vbCrLf & _
"Step1: Open URL" & _
vbCrLf & _
"Step2: Enter UserID and Password"
On Error Resume Next
Set CellToChange = Cells.Find(what:="Login", lookat:=xlPart)
CellAdd = CellToChange.Address
CellToChange = CellToChange & AddText
Do
Set CellToChange = Cells.FindNext(CellToChange)
If CellToChange Is Nothing Or CellToChange.Address = CellAdd Then Exit Do
CellToChange = CellToChange & AddText
Debug.Print CellToChange; CellAdd
Loop
End Sub
Regards
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