all these symbols

They are for the AC3 controllers and map to the little icons that appear on the lower line of the display (the status line). There is a picture in the back of the manual for what each will be represented as on the display.
 
sorry to clarify , in the programming ex:
LT1$-A01
LT2$-A02
PM1#-A03
MHF%-A04
HET%-A05
TOP%-A06
PMP#-A07
PM2#-A08
CHP#-B01
SK1#-B02
SK2#-B03
FAN#-B04
LT3$-B05
CHL#-B06
FUG$-B07
STR#-B08
ALM&-A09
MON$-C01
 
Yes, that is exactly what I was referring to as well. Look at the back pages of the manual; there is a table with what icon the characters represent.
 
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