Hi
The attached trigger file will allow up to 10 customisable lay bets for a matched back bet.
The constants are set out as:
LxP, LAY PRICE, where x is the number of the lay 1 to 10
LxA, relating LAY AMOUNT, where x is the number of the lay 1 to 10
Any LxA with a zero value de-activates that lay trigger.
In other words, the lay trigger will fire if LxA (the custom lay amount) is greater than 0.
I have set the first three up as examples, similar to your description.
L1P and L1A will lay 10 ticks below back matched price for 50% back matched amount
L2P and L2A will lay 15 ticks below back matched price for 25% back matched amount
L3P and L3A will lay the balance plus hedge amount at 1.05
L4A to L10A are set to zero, therefore these do nothing
Please use test mode to try it out.