When you start RexxMail, all you do in fact is open a couple of standard OS/2 folders. All RexxMail folders are plain vanilla OS/2 folders, so you can manipulate them like any other folder.
The only time RexxMail takes up memory resources is when it is actually performing a task, i.e. when one of the RexxMail program objects, or an associated mail message, is double-clicked. At any other time you are looking at straightforward folders and file objects, and you can use all the features provided by the operating system, through the WPS or a VIO command line, to manipulate them.
Since the RexxMail folders are normal WPS folders, their size and position, background colours or patterns, sorting behaviour, icon size, text font, etc. can all be changed to suit your preferences. If you use a WPS enhancer that adds folder features, it will also add them to the RexxMail folders.
The 'Accessories folder' holds objects for incidental use. If you like, these program objects can be moved to the main folder (or any other folder, including the desktop). Of course, the 'Accessories' Folder can also be used to hold any other program, file, or folder objects you may care to add.
With the exception of the 'Accessories folder', all the folder objects in the main folder have been made 'hidden' to avoid clutter. (The 'Accessories' folder contains a user folders utility that can be used to change this setting.)
Since the main folder is a workspace folder, opening and closing it will also open and close all the objects it contains -- except for the 'RexxMail -- Dispatch' program object, which starts a separate program session when it is launched, using the OS/2 'start' command.
If the RexxMail mail folders are open on the desktop, double-clicking the 'RexxMail - Open Mail Folders' object will bring them to the foreground, which can be useful if any of the RexxMail folders are obscured by other windows.
RexxMail is a REXX (CMD) program, which is called every time you start a RexxMail program object. When you open a RexxMail message file object, the associated RexxMail program object is started, which in turn calls 'rexxmail.cmd' with the appropriate switch argument. Normally, you won't see RexxMail running, because the program objects are configured to run RexxMail minimized. If you run RexxMail from an OS/2 command line, you will get a help message explaining the various switch options. The 'Help' directory in your RexxMail program directory contains a number of text files explaining the command-line options. Run RexxMail from a command line with the '/help' switch for a list of these files and easy access to their contents.