You should be able to highlight the section you want to move and either copy it/ paste it where you want - click on the time up top and then click on the destination track on the far left and past. Or you can select it, hold alt+cick and drag the selection to the new track and time (if you want to copy it. If you don't want to copy but just move it don't hold alt. Lastly you can highlight it, right click and choose 'split range' or something similar, going off memory, and then drag it.