distribute loss for specific back trigger

Hi,
How can I create a formula to distribute loss on a specific back trigger ?
example:                           Amount
Back Fav  trigger      Nadal  5.00
Back abc trigger      Murray 6.50
I want to distribute loss on Murray
Is it a remember command?
My existing trigger dist loss on Nadal
Thanks for your help
R

Hi
In the distribute loss trigger use one or more of the following conditions:
and trigger Back abc number of runs is greater than 0
and trigger Back fav number of runs is equal to 0
and selections index is equal to 2
and selections trigger expression bm_backa is equal to 6.50

Hi Mark,
The last one seems perfect.
I would use 'not equal' to 5.00
Thanks/Cheers
R

Hi
You might have problems with the last back matched amount if the back bet is partially matched, or matched in more than one chunk. I think the number of runs condition is best. 

Yes, good point.
Thanks
R

Mark,
Still a bit confused.
The Back Fav trigger may or may not have fired.
If it hasn't fired then no problem as it cannot distribute loss on that bet.
So I can't use the condition:
'and trigger Back fav number of runs is equal to 0'
Anyway I can't see how that condition can prevent distribute loss on Bet Fav trigger.
I am trying to get the program to ignore any back bet on Bet Fav trigger
and instead distribute loss only on back abc trigger.
hope that is clear
Thanks
R

Hi
It is: trigger abc number of runs is greater than 0

You can also do remember as you mentioned earlier:

in the backing abc trigger:
add a remember action, name abc_market_parent_id

in the distribute loss trigger:
first matching selection
conditions:
and global user variables abc_market_parent_id are set
and selections index is equal to abc_market_parent_id_sel_id

correction - last condition should be:
and selections index is equal to abc_market_parent_id_sel_index

Thanks Mark, This looks more substantial and will test it over the
next few days/weeks
Cheers
R