Hey Liam, Yes, I have actually done both. Again, the first option requires someone to approve each trip that gets submitted. But, when someone edits/Accepts it (has to be logged in) It will get disabled. The second one loads all of the items, but hides the "accepted ones" with css. (again person has to be logged in). So, may not be the ultimate solution, but it is something to work with and expand on.
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