Couldn't guess your complete requirement. Here is hint for you:
Code:
ActiveSheet.Shapes.AddLine ActiveSheet.Range("A1").Left, ActiveSheet.Range("A1").Top + 5, ActiveSheet.Range("B1").Offset(0, 1).Left, ActiveSheet.Range("B1").Top + 5
ActiveSheet.Range("A1").Value = ActiveSheet.Range("A1").Value & ActiveSheet.Range("B1").Value
Cheers
Shasur