Thank you for taking the time to respond.
I’m going to be a bit rude, sorry.
I looked at your tutorial, and to me it suffers from the same sort of issues as the official Wix help. It seems to me that it should be simple to connect a dropdown with a collection. You should specify the collection (indirectly through a dataset), and then specify the field in the collection to use as the label, and the field to use as the value (with, perhaps, the option to specify a singly field with a label,value pair, or a single field used for both the label and the value.). So what do we find in the dialogue? You get to choose the dataset, and the field for the value, with no sign of a field to specify for a label. Then there is another control to ‘connect dropdown list items’ with no explanation for what it is. But you get to specify another dataset/field pair. Frankly, I have no idea what it is for, and I have seen no documentation that tells me. I have played with it, but nothing I have tried has solved my issue.
Looking at your tutorial, you have a picture which confuses, rather than clarifies, the issue. Your description talks about a Team collection/dataset, but the picture has a default value “Who’s the best” which has nothing to do with your example. The dialogue to establish the connection does not have a ‘team’ collection/dataset but a ‘course’ one. And you do not show/explain a populated ‘value connects to’ field; nor do you explain/show the ‘connect dropdown list items’. So I am none the wiser, and still do not know what to do to get what should be a very simple thing working.