You can create a script of often-used functions and re-use that script from any other scripts. You do this using the Add .NET Script Reference command.
The following sample contains a script file called Calculator that will be referenced from another script.
Public Class Calculator
Public Shared Function Add(left As Integer, right As Integer)
Return left + right
End Function
Public Shared Function Subtract(left As Integer, right As Integer)
Return left - right
End Function
Public Shared Function Multiply(left As Integer, right As Integer)
Return left * right
End Function
Public Shared Function Divide(left As Integer, right As Integer)
Return left / right
End Function
End Class
Create another script, and add Calculator as a reference (expand the Properties tab, right click, select Add .NET Script Reference, and select Calculator) , and use the following code:
Public Module Main
Dim _desktop As Desktop = Agent.Desktop
Public Sub Main()
MsgBox("2 + 3 = " + Calculator.Add(2, 3).ToString())
End Sub
End Module