JS Script to display a block based on previous block display ?

Hello, I have a question regarding JavaScript. I'm a total beginner with it but I really need to get something done for the survey I'm working on at the moment. - I use a loop and merge study, there are 4 blocks (A, B, C, D) - participants are randomly assigned to either A, B, C, D "type loops" and read related arguments - after reading a fixed number of statements they can chose either to stop or to continue reading My question is: - IF they choose to read more, how can I implement in the survey flow or JS a condition/rule saying that: "If they were in condition "A type loops" ; then they will be exposed again to "A(next) type loops" ? I tried without success with embedded data, and could not find solutions up to now. I'd be extremely grateful for future advice ! :-) Just in case, here is the script used for "first" A-Type: Qualtrics.SurveyEngine.addOnload(function() { // Track page load var PageLoad = 1; Qualtrics.SurveyEngine.setEmbeddedData('condition', PageLoad); });