[O] Move marked text into environment

[AW]

Dear list,

would someone help me, being not a programmer, to achieve this:

I get Emails, copy them into an org-file and would like to write down comments 
on single sentences or paragraphs of the text.

I'd like to mark some text in the copied text of the Email inside the org-file 
and get "#+BEGIN_QUOTE" and "END_QUOTE" around the marked region.

I know that I can get the "environment" #+BEGIN / #+END_QUOTE with "<q", but 
that leaves it to me to transfer the text into this environment. 

Orgmode 8.0.1, Emacs 24.3

Thank you in advance!

Alexander