Some anxious residents of fire-ravaged Wang Fuk Court have urged Hong Kong authorities to help them climb stairs using makeshift aids when they return to their high-rise homes to collect personal belongings next month.Some lawmakers also proposed on Saturday that the government deploy wearable walking robots, stair-climbing trolleys or wheelchairs to assist elderly residents of the Tai Po estate devastated by the inferno that claimed 168 lives and displaced nearly 5,000 people in November.They...