Please find the steps to create html email template:

Step 1: 

Click on the Template icon as shown in the below image.

Step 2.

Now please click on the 1st plus sign as shown in the extreme right handside top corner in the below image. 

Step 3.

Now in this step you need to create the template name and the subject name, and then click the icon to feed the source code. In the below image you will find that we have shown where to click the source code of the HTML email. 

Step 4. 

When you click there , the window opens up. as shown on the below image. this is where you feed the source code. 

Step 5. 

Now you paste the source code here and press the "OK" button. As shown on the below image. 

Step 6.

Your HTML email template is ready.