Toggle coordinate system to/from WGS 84 / World Mercator.

1.Select Settings > Toggle coordinate system (Ctrl+Shift+T).

The area in the middle displays confirmation of commands or tasks that have been carried out successfully, displays error messages and other kind of information about the status of the current function or the tool you are working with.

Select the Message/status square to view a list of recently displayed messages. For example in use function Toggle coordinate system you will see such messages: Loaded 1062 objects in 0.39 s => 2716 objects/s.