How to assign MongoDB cursor?

How to assign MongoDB cursor?

Ok so I have to assign the MongoDB cursor in code to activate my Dataset. So:

How do I assign a MongoDB cursor directly to a specific database and collection? This example code works great, assuming all you want is a list of databases:

procedure TForm1.FormCreate(Sender: TObject);
begin
FDConnection1.Connected := True;
FMongoConn := TMongoConnection(FDConnection1.CliObj);
FDMongoDataSet1.Close;
FDMongoDataSet1.Cursor := FMongoConn.ListDatabases;
FDMongoDataSet1.Open;
end;

But I want a cursor assigned to my collection so I can pull up all it's records into a DB Grid. Assuming database testDB and collection testCollection.

Any help is much appreciated! Thanks!