Plot/Graph Commands
===================
N       draw new plot
del     delete selected plot
tab     select next plot, shift->tab select previous plot, select all
X       select plot axes (X,Y or both)  {scroll??}
,(<)    select next channel
.(>)    select previous channel
T       increase sample interval, 
shift->T decrease sample interval, 
alt->T switch sample/RMS
A       left
S       down
D       right
W       up
Q       rotate CW
E       rotate CCW
Z       zoom in, shift->Z zoom out, alt->Z autozoom ON/OFF
C       center plot ON/OFF, alt->C center point/grid space
F       freeze/unfreeze selected plot
G       select grid (tab selects plots again)
H       hide/unhide selected plot, unhide when all plots selected, 
	hide/unhide grid when selected
B	erase old points On/Off
P       change point size, change grid point size when selected
L       plot data with lines, change grid lines when selected
=(+)    select previous color
-       select next color
I       show/hide trap mode indicators

Control Commands
================
alt->0 thru alt->9 set locations
0-9 	goto set locations
RightArrow  jog stage right,  LeftArrow  jog stage left,  
UpArrow  jog stage up,  DownArrow  jog stage down
shift->UpArrow open pinch-clamp, shift->DownArrow close pinch-clamp
PageUp  jog stage focus in,  PageDn  jog stage focus out
Rbrckt  limit pull range right,  Lbrckt  limit pull range left
end	pause pull/relax
home	reverse pull/relax
alt->J  decrease force feedback rate div, shift->J increase force feedback rate div
alt->K  decrease force feedback gain, shift->K increase force feedback gain
alt->R  decrease position feedback rate div, shift->R increase force feedback rate div
alt->M  decrease position feedback gain, shift->M increase position feedback gain
U	start/stop data collection 
shift->U save preferences and locations
Y	change file-write speed
;	Y-axis-only force feedback
:	both XY axes force feedback (default)
ctl->A  autoAlign on/off