The second trigger:
Action: Back
Price: back_price
Amount: bm_laya*bm_layp/back_price
(greenup, right?)
Selections: First matching selection
Conditions are met:
Any Selection's Matched Back is greater than 0
AND Fitting Selection's Lay price is greater than [enter your price]
or you can calculate the price, for example 5 ticks above the placed bet: r_ticks(bm_layp,5)