Below is an example of php code which would be used for a blank capture page. In this example all you would need to change is the value pageNumber to be the page number of the new page (found on your-domain.com/admin/editpages). This page is setup so a person can add the capture page form inside the editor.
WYSIWYG Form Fields
Below are values to use in the WYSIWYG for the fields in the form. Use the value shown in the Name column for the name of the form field. Use the value shown in the ID column for the id of the form field. Items must be pasted exactly as shown.
|~formbesttime~||besttime||Best time to call||3+|