Hyundai Repair: Hyundai auto transmission, exact transmission, australian models

Question
difficulty in gear shift at first, now does not riverse,
also what if any other Hyundai uses the same auto transmission as Lantra SE

Answer
I'm not familiar with Australian models, so I not only do not know what transmissions may be in your (E)Lantra, but also do not know what models are offered there.  Among U.S. models, it's rare to find two different models with the same exact transmission.  Even if there's another model for which the transmission will bolt in, chances are great that the final drive ratio is different.