Reply To: List based on custom field

@ Fuxia

Maybe this will work for you?

[connections meta_query='{"meta_query":{"0":{"key":"Membership Type","value":"Golden","compare":"="}}}']

Capitalization matter, so, you might have to change Membership Type and/or Golden so it works.

The key is the Custom Fields Name and the value is the Value in the Custom Fields.

Hope this helps!