Counterbalancing images position in OpenSesame
I am designing a picture selection task in OpenSesame where participants hear a spoken sentence while two images are displayed on the screen (i.e., a target and a distractor image). Their task is to listen to each sentence and then, select the picture that best represents what they just heard.
I am currently trying to counterbalance the position of the two images in such a way that the target image does not always appear on the left side of the screen, but I cannot find the way to do it.
Additionally, I want to associate a keyboard responde (f;j) to each image (target, distractor) because participants will be asked to press the f or j key depending on whether they want to select the image on the left or right side, respectively. I am having trouble with this too, particularly if a randomise the position of the target and distractor images.
If someone has done this before and know how I can proceed, I would truly appreciate the help.
Thank you very much in advance,