How to only display the recent three rows in datagrid?

[shinny-xuyida]

Feature Request

Description of Problem:

We have create a new column by now() In Datagrid, with the data increasing the row will increatse too, how can we only display the newest three rows in Datagird?

Expected Result:

Providing a option that user could decide the number of rows display in Datagrid, user could use Order by to decide whether tail or head to indicate