With O A N D A you have five choices, 10, 20, 30, 40 and 50 to 1. You can change the leverage as you go. I believe it adjust for your entire account, not just individual trades.
forgive me if I'm on my own here ... but why bother with diffenet leverage? Find a broker with a max leverage you're comfortable with and just sclae you position sizes accordinly? Just because a broker provides you with 100x leverage doesn't mean you have to use it.