diff -ur mutt-1.8.0.orig/doc/Muttrc.head mutt-1.8.0/doc/Muttrc.head
--- mutt-1.8.0.orig/doc/Muttrc.head	2017-02-25 15:28:22.120997474 +0000
+++ mutt-1.8.0/doc/Muttrc.head	2017-02-25 15:30:10.643079681 +0000
@@ -24,13 +24,17 @@
 
 # Show documentation when pressing F1
 macro generic,pager <F1> "<shell-escape> less @docdir@/manual.txt<Enter>" "show Mutt documentation"
+# and also F2, as some terminals use F1
+macro generic,pager <F2> "<shell-escape> less @docdir@/manual.txt<Enter>" "show Mutt documentation"
 
 # show the incoming mailboxes list (just like "mutt -y") and back when pressing "y"
 # note: these macros have been subsumed by the <browse-mailboxes> function.
 # macro index y "<change-folder>?<toggle-mailboxes>" "show incoming mailboxes list"
 # macro pager y "<exit><change-folder>?<toggle-mailboxes>" "show incoming mailboxes list"
 bind browser y exit
 
+bind editor <delete> delete-char
+
 # Handler for gzip compressed mailboxes
 # open-hook   '\.gz$'  "gzip -cd  '%f' >  '%t'"
 # close-hook  '\.gz$'  "gzip -c   '%t' >  '%f'"
