Insert parameters of type elements contained in a room in the instance parameters of a room

After you get the elements you can get their type in a few different ways, but likely the Element.Type node is best for you here. After you have the type you can get the values you are after (finish?) but how depends on what you are really after and how it is stored.

After you get all the values together you can combine all of them using a string.join method for lists as described here:

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