New to me tn65 no 1 or 2 gear

I recently bought my friends 2000 tn65. It had been at our hunting club and sat far 2 years, (he bought a new one with a feont end loader) other than a leaking seal it was running fine when parked. Engine runs great, the shuttle works great, the a/b works fine......but 1-2-3-4 shifter seems to only have 3 and 4. It shows an H pattern on the shifter but I can’t get it to move left, just forward and back. Maybe I am doing something wrong or there is a trick to it? Maybe something in the shifter? I went underneath and the shaft that goes into the transmission does not move in or out (I assume it is supposed to). I really like this tractor as it is replacing my mid 70’s Massey Ferguson. Just wondering if Anyone had any experience ir ideas.

Thank you