Contains the size of the bet inserted by the user from the Lay betting frame. The Lay betting frame is available to the user only if the xml property "show_input_lay" of the strategy tag is equal to "y". The Lay betting frame is opened when the user clicks on a cell of the "Lay" column.
Example: <place condition="@is_horse_selected=1" price="@input_lay_price" size="@input_lay_size" />
When the horse is checked, place a bet with the inserted size and price.