random number used to select value in dropdown menu

Hi, complete newbie and first time poster. I apologise if I've missed something like that in this forum but I need your help with the following problem that I have. Namley I want to generate a random number between 1-5 and then use this number as a value in dropdown menu. Steps that I currently have are as follows:

...
Extract selection 'ByValue' on 'PriceCat' into DataBindVariable $(PriceCatValue)
[Add_to_cart_CodedStep1] : Generate random number between 1-5 $(randomNr):

    Dim random As New System.Random()
    Dim randomNr As Integer = random.[Next](1, 5)

Select 'ByText' option '1' on 'PriceCat' - DataDriven: [$(PriceCatValue)] <-- here I want to use randomNr instead of value 1 in option '1'
...

Is that even possible?

Thanks!