..so if, due to an abnormal situation (not only engine failure), you wanna fly a fast back track to the landing runway avoiding wasting time for the IMC departure or one engine out IMC track course procedure, EASA says that your Company should give you all the information about visual track separation from ostacles and minimum weather minima to perform that "action" in VMC.
For any of our airport network my company doesn't give those needed info so teorically we cannot fly visually any departure even if in emergency. Other stuff is that the PIC decides what is the best to do for safety as CaptainProp said, but that is another practical question.
What about your Company?