On this page:
The inline debugging functionality facilitates the debugging procedure, as it lets you view the value of variables used in your source code right next to their usage, without having to switch to the Variables pane of the Debug tool window.
Enabling inline debugging
To enable the inline debugging functionality, do one of the following:
Viewing inline debugging results
If this option is enabled, when you launch a debug session and step through the program, the values of variables are displayed at the end of the lines where these variables are used.