How to reference options data in EFS formula

[wsr1]

I’m a new eSignal Pro subscriber trying to write an EFS formula using the Formula Wizard. I want to reference options data (strike, ask, open interest, …). It looks like “close()” actually returns the BID price, someone please let me know if that is incorrect. How do I reference the options ask, strike, … in a formula?

[wsr1]

I have figured out that the getMostRecentAsk() function will give me the ask price but am still looking for a way to reference the strike, open interest, .... Any suggestions would be appreciated.

[wsr1]

Perhaps it might help if I rephrase the question.

In a Quote window you can right-click on any column heading and select Add Field to get a list of available fields, or data elements, that are available in eSignal. In this list I can see things like Open Interest and Underlying Symbol (for options). Since these fields are available in eSignal I should be able to use them in an EFS formula if I can just figure out how to reference them (I.E. what is the name of the function that returns that value).

For example; we can add the field Last Trade Price to a Quote window. Since we can see this field in a Quote window we know it is available in eSignal. If we want to use the value of Last Trad Price in a formula we have to figure out what function returns that value. In this case the EFS function getMostRecentTrade() returns the value we are looking for.

So the questions are:
1) What EFS function returns the value of Open Interest?
2) What function returns the value of Underlying Symbol?
3) What function returns the value of Strike Price?
4) Is there a reference that answers these questions? I have searched the knowledge base and the forums but haven't found the answers.
5) If I can't get the answer from this forum is there some place else I should look?

Any help would be greatly appreciated.