To create a Safety First form in the Web Portal you will either create a New Form or you can edit the set up of an existing form.
To create a new Safety First Form, go to Forms > Build New Template, select the option you'll be using to create the form, and then you can select if the Form you are creating is a Safety First Form.
If you would like to edit an existing form to be a Safety First Form you can go to, Forms > Existing Templates > select the Edit arrow for the form you would like to change to a Safety First Form > select the Safety First Check Box.