This is the first time posting on the tank forum.I am new to tanks but have other RC vehicles.I bought 2 Leopard tanks on Ebay.Both were assembled.both in sad shape and spent some time and money to get them up to par. But the prices were good. Now the question. The first one came with a Fatuba TX and changed over to the Tamiya Attack TX. Firing the main gun I only have to use the right joystick forward and it fires and back it fires Machine gun.The second tank did not come with a TX and bought a second Tamiya Attack. Now on the second tank i have to use the right trim button forward and reverse to fire main gun and machine gun along with the Joystick How can I change the second tank to fire like the first. Thanks in advance. Tony