Hi everyone, I am hoping to please get some help or insight with randomizing blocks in the Survey Flow. I will be doing a survey experiment wherein participants will be randomly assigned to 2 of 20 conditions, but I would like for certain blocks not to be drawn or presented together. In my Survey Flow, the Randomizer is set to randomly present 2 of the 20 blocks, and the blocks will be evenly presented. I would not like for certain blocks to be presented together or paired though. Any suggestions or help would be much appreciated! Thank you!