Changing dropdown selection in contact form from a button

Hello,

I have 3 buttons each for a separate product on my page that redirect to the contact form at the bottom of the page. The contact form has a dropdown box with each of these 3 products to choose from. I am looking to have the correct product selected in the dropdown box for each product button. So when Product 1 button is selected it will redirect to the contact form and Product 1 will be the selected item in the dropdown, and if Product 2 button is selected it will direct to the contact form and Product 2 will be selected. I know that this can usually be done using a get, but I am unsure how to make this happen with the Advanced layout builder.

Thank you,
John