ok, I have some hopefully constructive suggestions.
In the Window menu there are items zoom-toggle, one-window, duplicate, link-window, and reset-window-layout. None of these are intuitive, not even zoom-toggle and the help in un-helpful. Is it possible these are all relics from the old mdi style setup. The help for zoom-window says <quote> Zooms the current window to as large as possible. If the current window has already been zoomed, the previous window configuration is restored.</> When I use the command, I don't see anything that looks like zooming, for me it shows or hides buff tabs. The only reason I use this command is because I don't usually want to see any buff-tabs and they sometimes show up unexpectedly.
Suggestion one : have a menu option "Show/hide file tabs". When file tabs are toggled to "show" - automatically change the "files per window" config setting if it's wrong.
Suggestion two : if the "relic" menu options are still meaningful, move them to a sub-menu called "Manage windows".
Suggestion three : it seems you can press F1 when an mdi menu is showing but not many people will think of this. How about having a "help" option in the actual menu.
Suggestion four : for suggestion one above make it have a sub-menu that has 1) hide file tabs 2) show one file tab 3) show all file tabs.
Suggestion five : is there any practical reason to have the "files per window" configuration option at all since the file tabs can be turned on and off dynamically. If there is a practical reason to have it then the help should explain clearly what that is - and the same for the "relic" commands listed above. I just tried the "one window" command to see what it does and now I see only one file tab with no way of getting back to "all file tabs". I'm afraid to try reset-window-layout in case it does something I can't reverse. By the way, the help for the window menu is missing some things.
Suggestion six : try and make the help for the window options more specific. I have to be honest and admit that I really don't know what is meant by the term "window" in the help because I have the option "Files per window" set to "one file per window" - yet I have only one edit window showing so my brain is trying to tell me that a window is some kind of underlying implementation detail that I don't want to know about. The "Duplicate" command looks theoretically useful except that when you use it, you don't get a second window - you get a second buffer for the current file so maybe it should be called "Duplicate buffer".
Suggestion seven : the sub-menu mentioned in suggestion four above could have options "float buffer" and "duplicate and float buffer".
Suggestion eight : since there is confusion about what is meant by the term "Window" for the setting "Files per window", change the name to reflect what it does in practical terms, if it does anything more than allow multiple buff tabs.