Yes, you can clone an email template but the new template will be created for the same record type. For example, if you clone an email template for Contacts, the Record Type cannot be changed to Leads or Potentials for the new template.
You can insert a hyperlink by selecting the text and using the hyperlink feature You can use an image or a logo in your email template, by following the steps given below: Click Setup > Templates > Email Templates . Click the Edit link ...
Click the Library tab. Select Templates and click on Customized Templates. Here use the +New Template and select the HTML editor option. Once you are in the editor, select the HTML option from the toolbar. Copy and paste the code for the HTML ...
If you want to use a template, please draft the content, apply necessary formatting and click ‘Save Template’. You can use the template any number of times by clicking the template from the templates folder.