I recently started using ExpertFlyer and was wondering if there is a list of the EK ticket codes somewhere... For example, these are the codes for a flight I am on next week:

J7 C7 I7 O7 P7 Y2 E2 R2 W2 M2 B0 U0 K0 H0 Q0 L0 T0 V0 X0

I get that the J/C/O/P codes are business, but how do I ready the economy codes? Does this read that there are Y/E/R/W/M tickets remaining, and can you reply on the number of 2+2+2+2+2=10 tickets remaining?

Is there another thread explaining this?