Options: Greeks & strategies

How are Option Greeks Calculated? How do I check Options Greeks and create options strategies on Rupeezy? How do I create options strategies on Rupeezy's TradingView Terminal? How do I create options strategies on the Rupeezy app? Which model is used for Greeks Calculations? Why is there a difference between NSE's IV and Rupeezy's IV? Why is there a single IV for Call and Put options? Why is the option LTP I see on Rupeezy different from NSE?