My Abrams appears to have an an extra gear. I will check the gearbox to see if I have the right one in, but first I will switch channels back to 1 2 3 4. Currently I am running 4 1 2 3. To get a tank to utilize the buttons it has to a later model, the Pershing will not run on the 24G but I do not know if the Sheridan will, ask on the forum. For the Abrams I had go to tank A on the screen to see the function of each button and the scroll down and hit write. The buttons then worked.
Thank You for your reply