Allow for custom properties that are an array, not a string
Please let us create properties that are arrays so that we can use the contains() method.
Forum Discussion
What's your goal? Can you give an example? Several of the inbuilt properties are technically arrays, but you can use strings that are separated by commas or other separator to approximate an array. Most people misunderstand how contains() works, let's make sure we're solving the problem instead of mapping a rabbit hole.
