Merge Queries: Rightouter - Mismatch Columns Null

Suppose there are two columns in both tables, the second is Serial#. If I do right outer, vthe serial# should come into table 1 under Serial# along the value instead of nulls except expanded.

If there is any other way, please share.

Thanks in advance.

Regards 

after nestedjoin, do like this, say the new merged column is "Merged"

=Table.FromRecords(List.TransformMany(Table.ToRecords(NestedJoinStep),each Table.ToRecords([Merged]),(x,y)=>Record.RemoveFields(x,{"Merged"})&y))

no need addcolumn, just put the code in the new step

=Table.FromRecords(List.TransformMany(Table.ToRecords(#"Merged Packing"),each Table.ToRecords([Packing]),(x,y)=>Record.RemoveFields(x,{"Packing"})&y))