A useful shortcut refers to a more efficient or faster way of doing something. It helps save time or effort in accomplishing a task or solving a problem. Full definition
But some actual jargon, i.e. vocabulary known to people in a profession but not so much to the public, constitutes useful shortcuts for the users of the system. (slaw.ca)
In fact, there is a pretty huge action directory full of useful shortcuts. (lawyerist.com)
The keyboard's function keys actually have a lot of useful shortcuts. (pocketnow.com)