Using MC8 To Control Ableton

I am having some trouble using my MC8 to control Ableton. Essentially. I would like to do two things.

  1. Switch in between tracks
  2. Use midi to turn third party plugins on and off

I can’t figure out how to accomplish the first one

For 2, I set a cc message for a toggle of 127 in position 1 and 0 in position 2. When I go to assign the parameter it recognizes the command however it only turns that on. In Ableton it lists the min value at 64 and max at 127.
Can someone please explain what I am doing wrong?
@james I watched the video on controlling parameters and tried to do what you said and it won’t even recognize a keystroke command