Can someone explain to me how you would connect Zapier to Marketo & GTW? We are trying to test the simulated live feature in GTW. Do you need to add Zapier to Marketo or GTW? Does Zapier work for new leads? Also, could you use Marketo's forms and landing pages to promote our simulated live webinars? I just need more information on how the setup/process goes in using Zapier with Marketo & GTW.