Sentinel Open Interest Scanner

How can I depict yesterday in the advance trigger script?? I mean, suppose I want to be alerted in IBULHSGFIN (for example) derivative when its open interest increases as compared to yesterday. Then how does one depict the yesterday’s day?? I am not talking about eod data.

I hope you understand what i am trying to ask.

Sentinel only allows you to create triggers based on current day’s data. You cannot create triggers based on historical data.