Redmine already provides a shortcut to create a new issue (Shift + Alt + 7 on Microsoft Windows + Mozilla Firefox). It would be great if the other tabs in a project had related shortcuts, like Shift + Alt + 1 to open overview, Shift + Alt + 2 to open roadmap, and so on.

In the end, since all projects can have different active tabs (and some are added by plugins), it would make more sense to be able to customize keyboard shortcuts and link them to pages. I know I'm much faster with the keyboard and would like to do as much as possible with it.