I am calling TREP EMA API to get option chain for a given underlying security by passing RIC code of the underlying security (Ex: "0#IBM*.U for IBM chain). On the chain response, I am getting all constituents as a list with RIC code of each constituent. Then I am making a second batch call to TREP to get specific fields like strike price, bid, ask etc. for all of the chain constituents. My requirement is to get the TICKER symbol of the option as part of this batch response. Is there a way to request for TICKER symbol along with strike price, bid an ask for each of the option securities?