Hi, does anyone know how to disable "Ctrl+Enter" by sending an e-mail?

It is very dangerous especially when I use lots of keyboard shortcuts, such as pressing Ctrl+X followed by Enter. It's more convenient to release the "Ctrl" key later in this case. (Yes, it makes difference if you use a lot.)

Furthermore, when I write important e-mails, I need to take extra care not to press this combination accidentally, which is very tiring.
In MS Outlook, it is possible to turn off this functionality, leaving as a choice of freedom.

I found in some articles that changing the shortcut is blocked since version 6 but I'm not sure it is true. (I really hope it's not.)

Does anyone know how to remove the "Ctrl+Enter" combination or a place to change the shortcut?