Select a window, then click (View tab > Locking panel > Lock Plots) A small lock will appear in the top left hand of the window showing that it has been locked.
Repeat for all the windows that you would like to synchronize.
To lock all the plots at the same time, click (View tab > Locking panel > Lock All Plots)
Note: These tools can also be accessed from the Results tab.
Click (Results tab > Locking panel > Lock Plot) to access these tools from the Results tab.
To desynchronize the plots, click (View tab > Locking panel > Unlock All Plots)