Guys, a year ago or so I've disabled keyboard shortcuts in Jira. Soon after I wanted to re-enable them, but could not find a way to do so, and I still can't find my way. Some articles claim there should be a checkbox on the Keyboard Shortcuts page of Jira, but there's not any. In my Atlassian profile, I can't find any option for this.
Anyone, some good idea? 
Cheers,
Gus