I’ve skimmed through the pull request that added it as well as the keyboard shortcuts menu, and it doesn’t appear there is any way to trigger this from the keyboard. Is that correct? Can such a shortcut be added?
I support this, using what gmail uses gives people less stuff to learn, sadly we are going to have to wait 2 weeks here, we can not introduce new translations at the moment.
I am setting a reminder here to add the shortcut once our translation freeze is over.