Link windows
Description
Linking windows allows you to view a lot of information on many instruments quickly without having to open any new windows. Just type the symbol code or double-click a symbol to change the content in the linked windows.
Linking windows one by one
Open the window you want to link and click the "Link Window" icon on the right of the window title bar. Do the same for all windows you want to link.
The "Link Window" icon now displays the number of the link group. In the screenshot below, it is linked to group 1.
Link windows by group
To create different groups of linked windows, use one preferred channel for each group.

Link all groups
If groups of linked items are needed in addition to having some windows linked to everything, you can use the "All Link Groups" selection for those specific windows.
Example
The groups do not affect one another.
Double-clicking CARL B in the watchlist will change the chart and the orderbook to show data for CARL B.
Double-clicking CAT in the market window will change the historical prices to show data for CAT.