How to: Cut Text from One Text Box and Paste it on Another
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Outlook Developer Reference
The following example uses the Cut and Paste methods to cut text from one TextBox and paste it on another TextBox.
To use this example, copy this sample code to the Script Editor of a form. To run the code you need to open the form so the Open event will activate. Make sure that the form contains:
Sub Item_Open()
Set TextBox1 = Item.GetInspector.ModifiedFormPages.Item("P.2").Controls("TextBox1")
Set TextBox2 = Item.GetInspector.ModifiedFormPages.Item("P.2").Controls("TextBox2")
Set CommandButton1 = Item.GetInspector.ModifiedFormPages.Item("P.2").Controls("CommandButton1")