That tutorial has nothing to do with connecting users or anything of the sort. It's purely for constructing a select fields options (the values you see in the dropdown) from a database query.
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Yes, you can use this solution to easily duplicate a fields values without having to manually input the values multiple times. The main point of the tutorial is if you have say 5 select fields all with the same values you can use this solution to only have to input the values 1 time instead of 5 as it'll populate the other fields values automatically using a database query from your first field. As it uses database queries though you can basically query for whatever you like.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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-- If you are a Professional, Developer, or CB Paid Subscriptions subscriber and have a support issue please always post in your respective support forums for best results!
-- If I've missed your support post with a delay of 3 days or greater and are a Professional, Developer, or CBSubs subscriber please
send me a private message
with your thread and will reply when possible!
-- Please note I am available Monday - Friday from 8:00 AM CST to 4:00 PM CST. I am away on weekends (Saturday and Sunday) and if I've missed your post on or before a weekend after business hours please wait for the next following business day (Monday) and will get to your issue as soon as possible, thank you.
-- My role here is to provide guidance and assistance. I cannot provide custom code for each custom requirement. Please do not inquire me about custom development.