Ctrl-R to mark all as read

muttrc

@@ -43,6 +43,9 @@ bind index,pager R group-reply
 macro index,pager S '<sync-mailbox>
 macro index,pager \Cu |urlview\n
 
+#Ctrl-R to mark all as read
+macro index \Cr "T~U<enter><tag-prefix><clear-flag>N<untag-pattern>.<enter>" "mark all messages as read"
+
 # Notmuch searching
 macro index \Cf "<enter-command>unset wait_key<enter><shell-escape>read -p 'notmuch query: ' x; echo \$x >~/.cache/mutt_terms<enter><limit>~i \"\`notmuch search --output=messages \$(cat ~/.cache/mutt_terms) | head -n 600 | perl -le '@a=<>;chomp@a;s/\^id:// for@a;$,=\"|\";print@a'\`\"<enter>" "show only messages matching a notmuch pattern"
 macro index A "<limit>all\n" "show all messages (undo limit)"