I would like to use an openended trial to let my participants write a short essay. However, I would like to disable the possibility for the participants to continue to the next page before they have spent a certain amount of time on the essay and I want to make sure they don't accidentaly go to the next page because they hit ENTER to create a line break. Is there a way to disable ENTER as a response that will terminate the openended trial (and use a timeout only)? It seems like this should be fairly simple, but I couldn't find anything in the help files....
Here's my code so far:
<openended selfdescription> / frames = [1=selfdescription] / mouse=false / numframes=1 / position= (50, 90) / numlines = 30/ linelength = 100/ charlimit = 1000/ timeout = 180000