The lot size used on the copy account is based on your chosen risk setting. We support 4 different risk types

Risk Multiplier by Balance - Proportional lot size based the balance of both accounts.
Risk Multiplier by Equity - Proportional lot size based the equity of both accounts.
Lot Multiplier - A multiple of the lead accounts lot size.
Fixed Lot - A fixed lot size regardless of the lead accounts lot size.

The trade copier mode can be set and changed at any time. There are 3 different copier modes

On - New trades, modifications and closes will be copied.
Manage existing trades only - No new trades will be copied but existing trades will be managed to conclusion.
Off - Any trades on the lead account will be ignored.
Stops & Limits

You can choose to copy stops and limits like for like, override with fixed levels or not copy at all. If you choose to not copy limits but the lead account has its own limits, when their limit is hit a close will be sent to the copy account

If you want to ignore certain symbols from a system as they are less profitable, you can disable any symbol. Once disabled, any trades from that symbol will be ignored.

Do you know a system that loses money? You can setup a trade copier in reverse mode meaning for each trade, the opposite occurs i.e. sell when buy or buy when sell