Pre-selecting plan option with URL parameter?

Is there an easy way to add a URL parameter to the plan selection screen so that plan is selected straight away? I'd like to be able to click from a previous "plans" page so that it matches the same choice.

Something like http://spark.laravel.com/plans?plan=pro

Thanks!

Edit: Nevermind found out the answer here! - https://laracasts.com/discuss/channels/spark/passing-selected-plan-to-register-page-via-url-parameters