[edited from support email]

I'm using DirectRT. On each trial, subjects watch a video and indicate whether or not they detect a stimulus. If not, they press one button and this skips them on to the next trial. If they detect the stimulus, they press a different button and another question is asked. I realised that this wont work when I randomise the whole thing because I will not know in advance what the next trial is. Is there a way to skip them out of the trial and still make it all random?