It is possible to add shortcut to folder(s) on device’s Home screen.
To do so, use standard way to place shortcut on Home screen (this varies among various Android versions).
You’ll get a selector where you mark one or more folders. Then you give the shortcut a name, and click OK.
When the shortcut is clicked, ProfiMail will start in Message list mode, showing messages of selected folders.
ⓘ It is also possible to add shortcut to Combined folder.