How to enter a stop loss order with Interactive Brokers?

Hi all, I'm new to IB and I would like to set a 7% stop loss below my purchase price. Can you please tell me how to do this? I see there's a STP order and a MIT order. Which one do I choose to set a GTC stop loss order?

Thanks

 

IB has to LOT of information & videos on their website.
Type anything in the search box.
https://ibkr.info/video/1226

 

That's a great answer, thanks.

 

Thank you all for great anwsers