remember selection

Can someone help me configure block to remember selection (horse racing)
Below is what I have come up with but I think it is incorrect.

remember
name Back and Lay_market_id Create a new list everytime Remember selections bets

Thanks 
R

Hi
As an example please see attached screenshot.

The triggers will:

1. wait 1 minute since the market started refreshing
2. remember all selections with matched back bets, where the selections current back price is less than 6.00
3. make a note of the time the remember trigger fired
4. 5 minutes after the remember trigger fired, lay all remembered selections whose last traded price is less than remembered last traded price  

Thanks Mark, I will spend some time during the week looking into this and testing and will come back to you
Cheers R