Click in Image to show the full size picture.
Moving transactions synchronously can make life much easier when you decide for example to add a read cycle in between two write cycles. So you want to move the 2nd write cycle over maybe 10 clock cycles. This is done with synchronous moves. Simply select the 2nd write cycle by dragging the mouse around the transaction, then use Alt and Right Key combination to move it.
See the video shown below to see an example.
NOTE: No need to hold the Alt Key and drag the mouse to select the transaction anymore. Just drag the mouse around the transaction to select it.