Hi PantherSports,
Yes you can do that by using Cymatic with Excel.
Intoduction to Excel and CymaticYou can set a formula in the 'Command' column in Excel to display the word BACK if the odds reach 1.6. You can specify the desired odds of 1.51 by typing that number in the odds column in Excel.
Using Excel trigger commands with CymaticYou can also further expand your formula in the command column to test whether the race is in-play.
If you don't have Excel, you can get it here at a reasonable price:
Download Excel from Microsoft websiteKind regards,
Gavin