After service 5W01 (Reading Traincare depot to Slough) ends, you are instructed to "Wait for service" in which you apparently should park your consist on a siding at Slough after pulling a bit to branch line. Two problems with that: 1. If you stand up to change cabs, you can't sit back again 2. Your consist is still driveable, though, if you operate controls standing. But you still can't reach needed location because of this Although it is within map limits.