I disabled the translator that covered LED feedback for all 40 Matrix buttons.
I added another translator for just 2 buttons and showed examples of toggling just the two.
I used global variable ga for button 1 and gb for button 2. The preset is set up just to accept input and feedback to your APC40MK2.
For any other button you will need to create a new global variable. Each button must have its own global variable in this methodology. I did not use bit mapping since it seemed to confuse you which is why I disabled the other preset.