Copy and Paste HTML Templates in Email

Copy and Paste HTML Templates in Email

I created a full HTML email to use in a small blast to my customers in Microsoft Expression. When I copied and pasted it to the Email Template section in setup for use, and tried to save it, it gave me the following error:

=> [object HTMLScriptElement]

And did not save the template in Zoho?

Is it allowed to copy the HTML whether raw HTML, or the visual version of the information to ZoHo? Are there plans to do this?