BPM call context data in bpm query

Am I missing something?
Is there any way to access the bpm call context data when doing a query in a bpm?
It seems so simple and reasonable, toss my id in call context field then query associated system table to get match… However, I can’t find it anywhere. I know I can write code to do this, but gosh that seems like so much work for something silly.

Thanks
Nancy

I don’t think they show up there as a table, but aren’t you able to use them as constraints on a table? Wouldn’t that be what you are doing anyhow? I mean, not like there are going to be multiple rows of BPM context to JOIN to. I guess I’m curious what you are trying to get at and why, and then maybe community will have a better answer for how to use it.