no, grid is a grid view.
in the Interface template for “Records Reviewer” there is a Records list element added to side panel of the interface that shows all records on the table, allowing filters, grouping, color coding, sorting, etc. Then depending on which record you select in this list the data in all other elements gets updated.
a record picker is a single line dropdown menu allowing you to click open, select a record, and then see data. This allows no visibility to all other records or customizing what is in this list or the sorting and grouping.
I did find that I can add a timeline view to my records reviewer, disconnect it from the records list, and connect it to a table, which solves the problem… however it does not let me position it ABOVE all the other elements associated with the actual record list, so its a very odd layout.