How to add two last traded prices and get it compared to generate trigger in sentinel

Sentinel
1

Hi,
I want to entered a long strangle in option when combined price is below a certain value. Like:

LastTradedPrice(‘NFO:NIFTY20MAY9000CE’)+LastTradedPrice(‘NFO:NIFTY20MAY8900PE’)<=100

Is the + operator valid ? + was not found in operator list.
If not valid, how can the same be achieved ?

Thanks.

2

yes, + operator will work in sentinel, I have tried below the advanced trigger

LastTradedPrice('NFO:NIFTY20MAY9000CE')+LastTradedPrice('NFO:NIFTY20MAY8900PE')<=100