Jim, If in 1st gear and you want Neutral, foot on brake, lightly tap the (-) tab and it should shift to neutral. For reverse, foot on brake thumb on the R button and lightly tap the (-) tab and with a resounding clunk, you have reverse. Billy's tip on the lock should do the trick. I left a couple of tips on your other thread after your post of the ride home.
Any questions just holler, lots of folks on here willing to help!!!! Here is one you may or have encountered, if you put it in gear and you hear a high pitched beep, you left the parking brake on. Just tap the button to turn it off, the parking brake button.
Have fun and ride safe!!!!