Help for a new trigger

Ive only been with marketfeeder for 2 weeks and reading my way through all the great articles , im using the trial version and hoping to upgrade , im wanting to create a trigger that does the following

My Selections
Betting 20 Secs before the off
$10 Stakes
on
10/1 and under
As a Lay

Ive come up with following but , it first launches and asks me to say yes to putting the bet on , so if not in front of my computer it goes no further , i just want the trigger to automatically put the bets on without asking

Ive obviously missed something in there some where , any guidance appreciated

Hi
Go to Settings > General Options and un-tick: Request confirmation for every critical operation

Also, this trigger will work only if market supports In-Play mode.
If it doesnt support In-Play, You can use:

Selection's Trigger Expression event_start is less than now_time+mf_seconds*20

Hi thanks for all your help , all good now , have also included the extra condition if not in play

Great software , working my way through some more advanced triggers