I think you are referring to conditional betting. It is described in the user guide, but here are two videos to illustrate how it works.
1) You must first make sure the conditional bets column is displayed on the grid interface.
http://www.gruss-software.co.uk/Videos/ ... olumn.html
2) Set up conditional bet
http://www.gruss-software.co.uk/Videos/ ... l_Bet.html
In this example I set up a conditional back bet that is only placed when the last price matched is below 2.0. I set it to place the bet at 10 ticks lower than the last price matched to give it a better chance of being matched. Notice that I tick "allow bets to be placed in play" so that the bet is allowed to trigger while the market is in play.
IMPORTANT: Conditional bets will only be active while you are viewing the market. If you subsequently open another market the conditional bet will not be retained and therefore never triggered. If you need to have conditional bets on multiple markets you need to open a separate tab page for each market and leave them open.
You cannot save settings for the next race. To fully automate you will need to use Excel triggered betting, but only try this if you are proficient with Excel. Excel triggered betting is described in the user guide, but we do not attempt to teach it, we assume the user is proficient with Excel and can create their own spreadsheets.