If...then rule embedded in an If...then rule. Is this possible?

[NH]

I am currently designing a task whereby there are eight conditions. 
Firstly, a cue from one of the conditions is presented, then the 
participant must respond to a target. There are two main types of cues (but 
then multiple subtypes thus the eight conditions). What I have done so far 
is design the task so that the two types of feedback (based on target hit 
or target miss) are held in the "Unreferenced E-Objects" and an InLine 
object within the TrialProc refers to these (as in the "AwardPoints" script 
on the PST website). This works well. 
 
Now what I am trying to do is state within the feedback that if the trial 
is of one type, to give a high reward, and if of the other type, give a low 
reward but CRITICALLY only if the participant hit the target. So, what I 
have so far is "If the trial is high, then provide a high reward IF 
Target.ACC = 1 (i.e. a hit) else give the participant nothing; hence the 
if...then rule embedded within the if...then rule.
 
This total score also accumulates. The participant is shown the win for 
that trial and the total amount so far accrued.
 
So far, this does not work with feedback in each trial being given as 0 
(both trial and total feedback).
 
Any help would be very much appreciated.

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