ALONG WITH THE ALIASES IN THE PGP FILE THE FOLLOWING ARE SET OOTB IN AUTOCAD.
Switching between open drawings Ctrl + Tab
Switching between open programs Alt + tab
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SHORTCUT KEYS
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*CANCEL* (Same as ESC)CTRL+ \
Select All CTRL+A
Snap toggle on/off CTRL+B
Copy CTRL+C
Toggle dynamic UCS CTRL+D
Toggle Isoplanes CTRL+E
Group Selection On/Off CTRL+H
Toggle Coords CTRL+I
Repeats last command CTRL+J
Hyperlink... CTRL+K
Toggle Ortho CTRL+L
Repeats last command CTRL+M
New... CTRL+N
Open... CTRL+O
Plot... CTRL+P
Quits AutoCAD CTRL+Q
Toggle viewports (PS) CTRL+R
Save CTRL+S
Toggles Tablet Mode CTRL+T
Paste CTRL+V
Cut CTRL+X
Redo CTRL+Y
Undo CTRL+Z
Toggles Groups CTRL+SHIFT+A
Copy with Base Point CTRL+SHIFT+C
Toggles display of
palettes with CTRL+SHIFT+H
Quick Properties CTRL+SHIFT+P
Save As... CTRL+SHIFT+S
Paste as Block CTRL+SHIFT+V
Moves to next layout tab
to the left of current CTRL+PAGE UP
Moves to next layout tab
to the RIGHT of current CTRL+PAGE DOWN
Clean Screen CTRL+0
Properties CTRL+1
DesignCenter CTRL+2
Tool Palettes Window CTRL+3
Sheet Set Manager CTRL+4
Info Palette CTRL+5
DBCONNECT CTRL+6
Markup Set Manager CTRL+7
QuickCalc CTRL+8
Command Line CTRL+9
Help CTRL+F1
close drawing or app CTRL+F4
Help F1
Open Text window F2
Toggles Object Snap Mode F3
Toggle Isoplane F5
Move between open drawings F6
Grid on/off F7
Toggles Orthogonal Mode F8
Toggles Snap Mode F9
Toggles Polar Mode F10
Toggles Object Snap Track Mode F11
Suppress Dynamic Input F12
Macros Alt+F8
Visual Basic Editor Alt+F11
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TEMPORARY OVERRIDE KEYS
help files lists two overrides for some commands,
try both to see which one(s) work for your setup
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Toggles Object Snap Mode F3
Move between open drawings F6
Toggles Orthogonal Mode F8
Toggles Snap Mode F9
Toggles Polar Mode F10
Toggles Object Snap Track Mode F11
Suppress Dynamic Input F12
Toggles Orthogonal Mode SHIFT
Toggle Object Snap Mode SHIFT+A
Toggles Object Snap Mode SHIFT+'
Object Snap Override : Center SHIFT+C
Object Snap Override : Center SHIFT+,
Disable All Snapping and Tracking SHIFT+D
Object Snap Override : Endpoint SHIFT+E
Object Snap Override : Endpoint SHIFT+P
Disable All Snapping and Track SHIFT+L
Object Snap Override : Midpoint SHIFT+M
Object Snap Override : Midpoint SHIFT+V
Toggle Object Snap Tracking SHIFT+Q
Toggle Object Snap Tracking SHIFT+]
Enables Object Snap Enforcement SHIFT+S
Enables Object Snap Enforcement SHIFT+;
Toggle Polar Tracking SHIFT+X
Toggle Polar Tracking SHIFT+.
Toggle UCSDETECT SHIFT+Z
Toggle UCSDETECT SHIFT+/
Sky kish