Adding a parameter to an MSI install procedure

I need to add a parameter to an MSI install for the ZOOM application on windows 10. I have a procedure that worked but it is needing to be installed with a parameter and I am not clear on how to add that in to the code.

Hi @texupport,

Please add Parameters as explained in attached image

Kind Regards,
PremJK

Parameter.PNG

Thanks, but my procedure does not have any itsm.getParameter in it - so I cannot enter any data into the parameters field