I understand that in Prefect Cloud UI, parameters are ordered alphabetically. Is there a way to control the order in your flow script (Ideally, I want the order to be the order in which I define the parameters)?

this is for 1.0 right? I don’t think there is a way for now and it’s unlikely to be worked on in preparation for 2.0. I would invite you to make a feature request though for 2.0 when the time comes