Cross matching calculation is now enabled for in play UK and Irish horse racing win markets. See
http://gruss-software.co.uk/forum/viewtopic.php?t=5591
It is optional to display the prices and they are not visible by default. To view the prices tick "Apply cross matching formula in recognised markets".
To highlight the prices added by cross matching on the standard grid tick "Highlight liquidity created by cross matching" in grid interface preferences.
Install Beta Version