How to output JSON values without quotes

I’m using a CustomList to generate a transaction type. However, the output value should be an enum, NOT a string.

type: TransactionType.Fee

"type": "TransactionType.Fee"

Similarly, I’d like to be able to generate random dates as:
date: new Date('2019-10-26')

but I get:
"date": "new Date('2019-10-26')"

It would be great to have a checkbox to omit the wrapping double-quotes for the outputted value, as well as a checkbox to omit quotes for all the keys as well on the left side of the colon.

I know this is an old thread but did you ever find a solution?

Currently having to regex a large dataset