IT was a great feeling of power - to be able to move tonnes of metal by pressing a button or moving a lever. This was the thrill enjoyed by Grace Leung, nine, and hundreds of visitors who attended a hi-tech exhibition organised by the Hong Kong International Terminal Ltd (HIT). The two-day event, held at Tsuen Wan Plaza, introduced visitors to the HIT's Productivity Plus Programme (3P), which covers the latest technology and equipment used in ports and shipping. Visitors were invited to get on to a simulator on which you learn how to operate the world's fastest container stacking cranes. They also enjoyed hi-tech games and a quiz. Grace thoroughly enjoyed the mighty manoeuvres experience. 'It's a fun way to learn about technology. And by taking part in the exhibition I was able to win a prize and help handicapped children.' The handicapped children Grace was referring to are Hong Kong's spina bifida patients. There are more than 300 known cases of spina bifida in the territory, and about 20 children are born with the defect each year. Spina bifida is a nerve malfunction that causes a loss of sensation in the lower limbs. HIT operations liaison manager Macro Tam said the group would make a $30 donation to the newly formed Childhood Spina Bifida Support Group of Hong Kong for every visitor who hopped on to the simulator and played around with the controls. The support group helps spina bifida patients help themselves, and gives assistance to their families who have to cope with the tremendous difficulties and expenses associated with the disease. Mr Tam said the company plays a leading role in ensuring that Hong Kong maintained its competitive edge by providing high service standards to meet the ever-growing needs of importers and exporters. 'The 3P programme is the company's latest initiative to introduce and explain the most recent technology and equipment used in ports,' he said. Since 3P was set up last year, HIT has upgraded several systems for port users, re-designed yard layout, and upgraded gate procedures to ensure higher productivity and efficiency. The exhibition will next move to Hutchison House for the benefit of Hong Kong island residents.