What does cca. mean? If I understand, your want to un-syncronyse ( way of speaking ) the audio and the vid in the right window, also called canvas (and is related to the timeline).
First, you will have to make sure that the video and audio aren't stuck together so that when you move the audio, only the audio moves and the video stays in place.
To do that, you will go in the 'edition' menu in the top and search for the option with the short cut '?L' (shift L). I can't name it to you because I have a french version. Now you can use the arrow to select every audio clip (or maybe the only) that you have to move. Once they are selected, drag them left or right to change them place. The video won't move.
If this is not what you are looking for, please explain yourself again more clearly. If you have any questions post them. Good luck, Antoine