Hi
The trigger is very easy, see attached screenshot as an example. You can set the lay odds in the constant, and if you want to keep the bets in-play, change cancel to keep. Set your default lay amount in the settings to 2.00. You can add other conditions to make sure the market is not in-play etc.
Use the market locator and scheduler to add the new markets every few hours.
You will need to manage the markets because there will be far too many, it might be a good idea to have another trigger to delete markets when they have an unmatched lay bet.