How to show top first latest record from child custom entity in parent form?

Hello, 

I am extending information for Opportunity entity by creating custom ExtendedInfo Entity with 1:N relationship.

I want to see only top 1 (latest) record from ExtendedInfo entity in opportunity form. I already tried creating view showing record descending order by CreatedDate field and use subgrid with with limiting number of rows which creates two problem for me.

1. Not allow to set 1 value

2. It shows pagination (multiple records)

How can I achieve my requirement?

Thanks in advance...

Regards,

Ashish