Thank you for your feature-rich application. I just detected projeqtor and have the impression that it addresses many of my requirements. So I started to test it today..

However, one of my first tasks wasn't successful: I don't understand how to create quotations/bills that are suitable to send to customers. There is one thread here ( http://www.projeqtor.org/en/forum/5-ask-questions/7614-solved-quotation-order-bill-how-to#14799) which addresses this topic. But to be honest, I don't understand what to do. So please help with these questions on bills:

a) Is there a step-by-step guide how to create "good-looking" letters (including logo, address header, legal footer, ...)?
b) If there is no such Howto, what is the best way to achieve that goal?
c) What steps must be taken to create a bill from an existing quotation?
d) Is there any functionality to create reminders from overdue bills?
e) In addition: can one change the quotation's/bill's sender address and footer with respect to the person responsible for that action?

Any help is very much appreciated. Thank you!