How to prevent vinagre process Ctrl key?

When I am using Ubuntu's Remote Desktop Viewer (vinagre), I generally open a gnome-terminal on the remote server. While using the terminal, I want to have access to all Ctrl+key combinations. However, vinagre processes some combinations locally, for example; if a press Ctrl+Q, my remote desktop session is terminated; if I press Ctrl+D, it tries to add a "bookmark".

I do not want the key combinations to be processed by vinagre, but just sent to the remote session as they are. vinagre does not have any configuration option.

Solution 1:

It turns out that the View → Keyboard shortcuts was the option I needed.

I am sorry for posting such a silly question, but I think vinagre desperately needs some user interface improvements. It seems that it has not been updated for ten years.