I have a customized invoice template but I want also use this template in
Sales Quotes
Sales Orders
Credit Notes … etc
My mean is that if I want print anything from MANAGER then it will print on my customized template.
HTML templates are supported on invoices only. The main reason why only 1 document type was supported was for me to experiment and learn the best way to implement this. So right now it’s not possible to customize other documents but it will be added.
Great to hear that. This would mean a lot to me to.
Again … in future … 
When it will happened ? same like as Duplicate Items and Bar Code issue … 