@Erasimus, the reply from wims of "have you tried window -s" was directed at me. Silly of him to not elaborate until questioned though.
As I alluded to and others have pointed out -- unless you plan to sort the lines in the custom window -- you can use /echo to add lines to a custom window. as you would any other buffer
Last edited by FroggieDaFrog; 04/02/19 03:53 PM.