Ah, now I see the problem. A Text field is not a multi value field.

The field would need to be a Select or Checkbox field set to Multi Value. I think the Checkbox field allows users to add new values, but, otherwise, there needs to be a predefined set of values to choose from.

Until we modify how the range slider works, there are only two methods you can use to be able to show properties with no price:

#1 Make the price 0, as a default value, for all properties currently with no price. So, this way, none have an empty price.

#2 Have a second price field, where this field has text values, like:

No price
up to $199,999
$200,000 - $300,000

and so on, so each property has two values for price. One s the actual price, the other is the text ‘range’ label. Then use this new field for the form.

We do plan to modify the way ranges work in V3, due in a few months.