Lay Book [l_book]

Can the lay book be displayed/calculated even though not all selections have lay odds.

In jumps especially once there is a faller or pulled up horse the lay book is no longer displayed (I know this is how it is currently working, it's not a bug) .. but sure it can be calculated based on all the other selections that still have odds greater then zero
 

In your triggers you may use the match_l_book variable - it's the book % for matching selections (selected by the trigger).

For example to dutch on the first 3 favourites:

Action: dutch lay
Selections: All matching selections
Conditions are met:
Any Selection's Rank is equal or less than 3
AND Trigger Expression match_l_book is greater than 105

To watch this value you have to create another trigger:
Action: Set user variable MyBook value match_l_book individually for each market
Execute: once per second
Selections: All matching selections
Conditions: Any Selection's Rank is equal or less than 3

Or to watch the book % of the existent prices:
Action: Set user variable MyBook value match_l_book individually for each market
Execute: once per second
Selections: All matching selections
Conditions: Any Selection's Lay Price is greater than 1


Then enter into the "View variables" list the MyBook variable.

Thanks a lot. 

Going to have some fun tomorrow .. fingers crossed I like the results!