Select Options->Display style to specify what information you want displayed in the Call Stack window, and to specify the growth direction for the window.
In the dialog that appears, you can select from the following items (not necessarily in the order shown here):
Click on an entry from the list above for help about it.
To select an item in the dialog, position the pointer over it and click mouse button 1, or press the space bar. (Clicking or pressing again deselects a selected item.) Selected items appear white on a gray background. To cancel changes you have made to the window without closing the window, click on Reset. To restore the debugger defaults, click on Defaults. You can move through the list by using either the mouse and slide bar or the cursor keys.