Call stack
 Toggles the display of the call stack window on or off.
──────────────────────────────────────────────────────────────────────────────

 This will enable or disable the call stack window depending on the current
 state of the window. If the window is not currently open it will be opened.
 If the window is open it will be closed.

 The call stack window shows each level of calls made to other functions,
 programs or procedures at any one point during the execution of the program

 The call stack can contain both function names and method names for those
 object methods that may be called. The call stack window also shows the
 amount of stack space available.

 By default, the call stack window is displayed.

 The hot-key combination for this item is <Alt><K>.