Adding to a collection
You can add to a collection very simply by hitting the New entry button in the top right corner. This will take you to a page about which will have fields setup by the agency to fill out.
You might also see under the input some help text which will help provide context to that field.
Some fields might be a Required which have to be filled in to add an item to the collection.
This is an example of what a collection New entry might look like. This may vary from collection to collection.