!Pluto supports interactive help using Acorn's !Help or with !BubbleHelp.

!Pluto includes powerful facilities for archiving, searching, sorting,
categorising and selecting articles.

Users of Marcel and Posty will especially enjoy it's fast operation.

Users keeping large numbers of articles will appreciate its compact
article storage (as little as one third of the disc space needed by
NewsBase or NewsAgent).

Pluto collects together the best features of other news readers plus:

-  Compact storage and fast access to stored articles.
-  Speech for proof-reading, plus talk-as-you-type.
-  Integral spelling checker (with phonetic "sounds-like" suggestions
     list, and including a crossword puzzle aid).
-  Abbreviations expansion when typing.
-  Treats maillists as newsgroups with "threading" by subject title
     or by references chain.
-  Can reply to either the maillist or the author.
-  Article lists with user-definable multi-level sorting and layout.
-  Import/export from other news readers.
-  Reformatting of quoted text to fit page width.
-  User specified font and size (including System Font) for article text
     and lists.
-  Toggle display/hide of Read articles.
-  Storing and categorising text and other data in the manner of
    "Knowledge Organiser 2" (and import of data from KO2).
-  Choice of 3 editing styles: !Edit, Clipboard, and Wipeout (auto-delete
     of selected text).
-  Automatic stripping of internet headers for specified folders.
-  Deleted articles are recoverable from a Bin folder.
-  Can select from a range of signatures when posting.  Can specify
      different default signatures for different newsgroups and 
      different addressees.
-  Quick switching between proportional and monospaces fonts for reading
      messages.
-  Store HTML files and view them as plain text.

Other features include:
-  Different colours and voices for different quoting levels.
-  Folding article lists.
-  Various types of threaded article list displays
-  Option to use built in editor or external editor (Zap/StrongEd).
-  Header-only news downloads (if your newsfetcher supports these - note
     that Voyager users can use the free NewsHound fetcher to provide this).
-  Keeps log of outgoing news and mail messages.
-  Edit, delete, and hold messages in the outgoing queue
      (automatically updating the log copy).
-  Toggle to display or hide internet headers.
-  Address book with user defined sections.
-  Killfile/filter.
-  Easy reply by mail to news articles.
-  Click on URLs in the text to fetch web pages or send email.
-  Global clipboard (including to and from writable icons)
-  Password protection on folders.
-  Easy transfer of articles between folders.
-  Distribution lists for sending emails.
-  Converts sender's local time to your local time in the article viewer.
-  Can save backup copies of the last few raw news and mail files.
-  Keeps Draft copies of message that you're writing, so you can quit
   and continue later, or survive a system crash.
-  Crossposted news articles only shown once.
-  Warning when cross-posting to multiple newsgroups.
-  Option for random selection of Tag before or after sig.
-  Different expiry periods can be set on each Folder, Newsgroup, or Maillist.
-  Send and receive MIME and UUE attachments, receive Yenc attachments.