Reusing Jmeter Random Variable in the same request

I'm currently using Jmeter 5.1 and "bzm - Random CSV Data Set config" to read random MemberID from a file, And I'm using this variable inside a post, as you can see below. So, My question is.. Do we have a way to use the same variable and have different MemberID in the same request?

Post Body data

[
 {
        "memberExternalId": "${MemberId}",
    }

    {
        "memberExternalId": "${MemberId}",
    } 
 }
]

Thanks