How do I set how many option contracts the mirror buys?

How do I set how many option contracts the mirror buys?

Settings → Options Mirror → contracts-per-trade, plus max premium, max spread, and expiration window. When the bot goes long it buys ATM calls; short, ATM puts; nearest expiry within your window. The options close automatically when the stock leg closes.

Confirmed on my end — this solved it. Appreciate the clear steps.