You have a number of address fields  which you want to CONCATENATE into one field but you want the address information to appear on different lines after concatenation.


1 A B C D
2 Address 1 Address 2 Address 3 Address 1
Address 2
Address 3

In the above example you would insert the following formula in Cell D2;


=ArrayFormula( CONCATENATE( A2& CHAR(10),B2& CHAR(10),C2 ) )