When you attempt an Engineering check to disable or repair a device, you can forgo rolling your expertise die to instead halve the time it takes to make the attempt.

As long as you have the time to do so, you can take 20 (see page 133) on Engineering checks to identify creatures and technology, even if you do not have access to a computer terminal or other means of research. If the creature or technology was created by a group or individual you are familiar with (normally including any major corporation or military), on a successful check you also identify what group created the object identified.