Hi
The attached trigger will back 1 specific selection before the off, according to your constant settings.
In the constants you can set:
Back Amount (currently set to 100.00)
Minutes before the off for the bet to be placed (currently set to 5 minutes)
Selections rank to back 1=fav, 2=2nd fav, 3=3rd fav etc. (currently set to 1)
Please use test mode to try it out.