In my trigger in play i want back a horse if the sum of the 3 best lays price are greater than 50. There is a expresion for do that.
Example my trigger its going to back a horse in play at 1.50 but before that i want the trigger check in the 3 best lay price offer for example( 1.53,1.55 and 1.60) if the aumont waiting in that odds are greater than 200 .
Thanks