I would like to be able to use <CTRL><RETURN> for the "eval current line" action. With the current version I wasn't able to set this up. The default (<CTRL><SHIFT>R) is way too difficult to remember and unnatural.
After some testing, it seems I cannot (or do not know how to) cath something like Ctrl+Enter in gedit, most probably because this key is processed by gedit and not passed to the plug-in (please see the manual for an explanation of this limitation). So,it looks like you cannot define this shortcut for the moment :(