Can you re-organize your tracks. I want the last tracks to be the first. But when i try to move the first tracks=the begginings, to the right, they hit a wall, and this is not possible?
In the event you mean "clips" instead of "tracks," try using the little ball control above the tracks to zoom way out so you can see your whole timeline. Then click and drag the first clip until it is in the last place. From there, you can drag and organize your clips how you want. If you really did mean tracks, please ignore, with my apologies. Moving clips up and down on the multiple tracks is a little more detailed than that.
The TechSmith learning videos at https://www.techsmith.com/tutorial-camtasia.html are really good for learning the basic moves such as you are trying. Rather than keep guessing on what you need, it's better to recommend the tutorials, which will answer a lot of questions that are sure to arise. Good luck and happy editing!