In addition to conventional Alias type keyboard command shortcuts AutoCAD provides a number of special Accelerator Keys. Examples that you will be familiar with are F1 for AutoCAD’s HELP and F8 for Ortho ON and OFF. The distinction between Accelerator Keys and command Aliases is that whereas command Aliases are typed at the command line and must be completed by <enter> or [space-bar]; accelerator keys execute immediately without the need to press <enter>, Accelerator Keys also include some special key combinations such as Ctrl+chr.
MYCADKEYS Accelerator keys:
F1 MYCADKEYS HELP
F2 Same as AutoCAD (Textpage)
F3 Toggles MYCADKEYS Command- repeat ON and OFF
F4 3DORBIT
F5 REGENALL
F6 Toggles MYCADKEYS Edit Text mode ON and OFF
F7 Toggles layer name length between 5chr, 12chr or OFF
F8 Same as AutoCAD (Ortho)
F9 Toggles SNAP ON and OFF
F10 Same as AutoCAD (Polar ON/OFF)
F11 Toggles TILEMODE ON and OFF
F12 When Tilemode is OFF toggles Vport active or inactive
AutoCAD accelerator keys:
Shift+F1 AutoCAD HELP
F2 or Shift+F2 Toggles between the AutoCAD drawing screen and the text screen
F3 or Shift+F3 Starts OSNAP command.
F4 or Shift+F4 Toggles TABMODE ON and OFF.
F5 or Shift+F5 Toggles ISOPLANE ON and OFF
F6 or Shift+F6 Toggles COORDS ON and OFF
F7 or Shift+F7 Toggles GRIDMODE ON and OFF
F8 or Shift+F8 Toggles ORTHOMODE ON and OFF.
F9 or Shift+F9 Starts SNAPMODE command.
F10 or Shift+F10 Toggles Polar Tracking ON and OFF
F11 or Shift+F11 Toggles object snap tracking ON and OFF
F12 or Shift+F12 None
MYCADKEYS leaves the Ctrl+Shift+character keys as defined by AutoCAD.
EDIT
MYCADKEYS OSNAP Ctrl+character shortcuts:
Ctrl+# aLong or diVide
Ctrl+A Apparent
Ctrl+B COPYBASE
Ctrl+C Center
Ctrl+D noDe
Ctrl+E End
Ctrl+F From
Ctrl+G general midpoint between two points
Ctrl+H Hidden EXTension
Ctrl+I Intersection
Ctrl+J midpoint between two end points
Ctrl+K kwik END, MID, INT, CEN
Ctrl+Ll paralleL
Ctrl+M Mid
Ctrl+N Nea
Ctrl+O nOn
Ctrl+P Perpendicular
Ctrl+Q Quadrant
Ctrl+R not used
Ctrl+S inSertion point
Ctrl+T Tangental point
Ctrl+U Until meet line
Ctrl+V PASTECLIP
Ctrl+W not used
Ctrl+X Xval X value filtered from a point
Ctrl+Y Yval Y “”
Ctrl+Z Zval Z “”
On a keyboard with a number pad the following definitions may be usefully added to your accelerator keys.
Numpad 1 – <90
Numpad 2 – <270
Numpad 3 – <315
Numpad 4 – <180
Numpad 5 – <@
Numpad 6 – <0
Numpad 7 – <135
Numpad 8 – <90
Numpad 9 – <45