How-does-WL-send-the-bracket-order-to-Interactive-Brokers-IB

For example, let's say I have a strategy setup in WL to buy at the market, a position size 20% of the account equity in XYZ stock if it closes above the 200-SMA and have a bracket order of 1% stop-loss, 5% profit target attached. Does it just send the entire bracketed order over to IB at once and then IB holds the order and triggers the various orders once they’re hit, or does WL wait until the various criteria are triggered in the bracket order and then send the order to IB a piece at a time as market orders?” TY.