### Change Mouse button 2 Behavior

To change the behavior of mouse button 2 within the Source window, select Options->Debugger settings->Debugger properties from the Source or Session Control window menus.

Then, select one of the following check boxes to determine how mouse button 2 will behave in the Source window.

Popup menus
  Displays a popup menu, where one is available; otherwise does nothing.
Step always
  Performs a step command.
Popup menus and step in white space
  Displays a popup menu, when the pointer is over certain text (for example, a variable or a line number in the prefix area), and performs a step command when the pointer is over white space or over text for which no popup menu is available.

Mouse Button 2 Behavior