1. First, after logging in to your account, navigate to the Funnel you want to set up then click "Edit funnel".
2. Next, Hover your mouse pointer over the page you want to edit. Then click on it.
3. On the bottom right corner of the page drag the Custom HTML element to a Row.
5. This will open the "Code Editor" window. You can now add the codes. Once done click the "Save" button.