Customizing the HTML URL

Hi,

Is it possible to change the HTML link in order to automatically assign values in the dialog box?

This feature was presented in this video here: https://youtu.be/bprYeBzkUc8?t=2666. However, I have still not understood how to do it. It would be great though!

For example if I have participant 1 in group B - but I don’t want the participant to type in this information, can I do it for him via URL?

I already found the answer - I just didn’t see it before: https://www.psychopy.org/online/onlineParticipants.html