RE: export html e-mail templates
Hi yes, this is doable.
1. Switch the view in the email template list to "Read Only Grid"

2. Create a new view that you're going to use for exporting. In this view, make sure you add the "Designer HTML" and "Email body" columns

3. Now, on this view, use filters to select which templates you'd like to export.
4. Click on the "Export to Excel" button in the ribbon - and save the excel file. This now has your HTML template data.
5. In the new environment, use the import from excel to import the email template information. Make sure you do not change the column headers of the excel sheet.
6. Once the import operation is complete (you can keep an eye on it from MarketingSettings -> Import Data
