Yes, I've added (bound) a few of my own that I use a lot:
F7 = surface function menu
F8 = Solids function menu
F9 = Solids operations menu
F10 = Do not modify or rebind this key, its a window's special
F11 = verify 1
F12 = verify 2
N = line join because that is what the line join icon looks like.
H = draw parallel lines, because an H has two parallel lines
CTRL +D = tape measure (I think " get control of this
Data")
CTRL+ALT+M = move (I think:
Control
Alternative
Movement)
CTRL+ALT+L = draw rectangle (because L reminds me of a carpenter's square,
Control
Alternative
Square)
Keypad- = zoom out (common "scope" key in military sims)
Keypad+ = zoom in
S = select chain because hmm, I don't know what "S" and "
Select" have in common.
The curve of the S reminds me of a chain.
X = point at intersection (X marks the spot, right?)
Shift+X = point at arc center
B=
Break
E = point at
End of entity
T = Trim 1
ALT + T = Trim 2 (maybe, I'm going from memory here)
V = Viewall
Hint: using "ALT" + key is not too good to bind, because the Alt key plus certain letters, triggers some of the menus to open, which is also standard windows practice.