[MlMt] Applying default columns to smart mailboxes

[yet at gmx.de]

I created several smart mailboxes and I want the same column layout as 
all other folders.
„Revert to default columns“ does not work for smart mailbox. Also 
newly created mailboxes
do not use the default columns by default…why is this the case? This 
functionality is basic
and key functionality of any email application. It is broken in Mailmate 
app for a very long time.
Why isn’t it possible to fix this? Instead we see new „features“ 
introduced with very release
that are of interest for very few ppl. Please work on the basics instead 
of investing time and resources
into features for a small minority.

-aj