Script to set a limit order once a price/level breaks

I am after a script that once a set level/price breaks it sets a predefined limit order.

eg. a long trade.
I want to set a price level above current price.
When that price breaks I want it to put a buy limit order in at a level with a SL I have defined.

opposite for long.

It is just a conditional limit order.
The limit order is entered once a price above or below current price is broken.