> Is it possible to merge new mail and outgoing mail/copies to self in a single folder? If so, can one toggle between the merged and unmerged
> views?
It can be done manually. You can create a folder containing both the new mail and copies to self by copying the mail to a "Link" folder.
Pegasus Mail Link Folders
Link Folders are a specialized type of folder that can contain references to messages in any other folder in the system. Link Folders do not themselves actually contain messages - they only contain "links" to the messages in the folders where they are actually stored. Pegasus Mail uses Link Folders primarily to store the results of folder searches, but you can also create them yourself if you wish - for instance, you may find them useful as "to-do" lists. A Pegasus Mail Link Folder is a single file with the extension .PNL.
> Is it possible to merge new mail and outgoing mail/copies to self in a single folder? If so, can one toggle between the merged and unmerged
> views?
It can be done manually.  You can create a folder containing both the new mail and copies to self by copying the mail to a "Link" folder.
<i>
Pegasus Mail Link Folders
Link Folders are a specialized type of folder that can contain references to messages in any other folder in the system. Link Folders do not themselves actually contain messages - they only contain "links" to the messages in the folders where they are actually stored. Pegasus Mail uses Link Folders primarily to store the results of folder searches, but you can also create them yourself if you wish - for instance, you may find them useful as "to-do" lists. A Pegasus Mail Link Folder is a single file with the extension .PNL</i>.