How to change top help bar?

[Petr Hlustik]

Hi,

Is it possible to change the help bar at the top of mutt screen? E.g., in
the index, the default is:

q:Quit  d:Del  u:Undel  s:Save  m:Mail  r:Reply  g:Group  ?:Help

I found various _formats but not this one.

Thanks very much,
Petr