Millisecond Forums

Hello everyone!

I am programming an experiment where two images are shown: A number (either left or right) and a letter (either left or right)
The participants have to press a left or right key for the position of the number.
I have built every possible combination as an object/ trial in Inquisit. (Number from 1-9; letter from a-i)

An example (letter g; number 7):
<trial g_7>
/ontrialbegin = [
    values.congruency = 1;
]
/ posttrialpause = 750
/ correctresponse = ("k") / beginresponsetime = 1000
/ validresponse = ("d", "k")
/ stimulustimes = [0=Fixationcross; 1500=clearscreen; 2500=clearscreen; 1000=clearscreen; 1000=g_links, 7_rechts]
/ timeout = 6500
/ontrialend = [
    list.responses.insertitem(trial.g_7.correct, 1);
    list.responses_congruent.insertitem(trial.g_7.correct, 1);
    
    if (trial.g_7.correct) {        
        list.latencies.insertitem(trial.g_7.latency, 1);
        list.latencies_congruent.insertitem(trial.g_7.latency, 1);

My question is:
- Is it possible to edit a square around the target of the first random trial of the list?
- How can I define that everytime when the participant pushed the wrong key, the target of the next trial is again framed with a square?
- How can I show a defined trial again, when the participant pushed the wrong button?

I can give you more Information if necessary :)
Tank you very much!
Danny