Codelocks CL600 - Key Override (Stainless Steel) Review

Good product but instructions for changing code not helpful. Bought new model to replace similar old model on which I could not change code. Instructions are to 'push code change tool onto each button in turn'. This did not work and it may be that tool should be used only on buttons for current code. Also, step 4 says perform step 6 before step 5! Why not give required steps in proper order?