You can create an email signature template inside Pages/Templates and use that template inside other templates. We now show a variable for each template in this area. To use the email signature template in another template, first put your content which can contain variables inside the email signature template. Then insert the variable for the email signature template into any other template. Below is a video on how to do this.
Doing this, allows you to update your email signature that may have ads or other information that occasionally changes by editing one template only and it updating in all your templates. You may also use this for applications other than email signatures. You may use it for headers of your emails or other content that you may put inside the body of your emails or pages.