I don't seem to be able to find how to do this anywhere, I've tried adding a new aui-option to the datalist but even though the new option does appear on the list it won't be there when you search for it by writing on the input field.
Is there some way to do this?
There's no way to add a new option programatically (yet). You could use the async version and back it with a rest resource which could provide more results.
Alternatively you can add the "can-create-values" attribute to the element, and then set it's value to something. It will appear as a special option in the list with "(new value)" after it.
I'll try to explain here, I'm following the first example in (https://docs.atlassian.com/aui/latest/docs/single-select.html), the synchronous one. When I write the options on the template like that it works fine, but I want to be able to add or remove options afterwards since they should change depending on what the user chooses on another field.
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