AutoCAD LT supports user-defined shortcut keys (or accelerator keys); these are function keys such as F1 and combinations such as CTRL+C. The following is a short example of an Accelerators section in the AutoCAD LT menu file, aclt.mnu.
***ACCELERATORS
ID_Line [SHIFT+CONTROL+"L"]
[CONTROL+"Q"]^C^C_quit
[CONTROL+SHIFT+"Z"]^C^Czoom extents
The Accelerators section contains items in one of two formats. The first is a name tag (such as ID_Line), followed by a label containing modifiers. Valid modifiers are CONTROL and SHIFT. The modifiers are followed by either a single character (such as L) or a special virtual key string (such as F12) enclosed in quotation marks. This type of item maps a key sequence to a menu item. You can concatenate modifiers by using the plus sign (+), as shown in the example. When a special key sequence is recognized, the menu item associated with the name tag is executed as if the user had chosen the menu item.
The second format uses a label containing a modifier and a key string, followed by a command sequence. This method maps a key sequence to a command string and does not have a corresponding menu item.