Add an icon on the top of Cinnamon windows to hide/unhide menus

[InfoLibre]

In Xreader, Nemo, Firefox..., if you uncheck "Show menu", menus are hidden. After that, it's impossible to unhide them. There's no icon, no check box to show them again.
The only way is to press Alt key and then, to check again "Show menu".
In Terminal, it's not Alt key but Menu key that is used to hide/unide menus.
If you don't know which key to press, you never can unhide the menu.
Alt key is used for other things (Alt + tab, Alt + F1). So, using it alone to hide / unhide menu isn't a good choice, you can hide menu by error.
If you use a touchscreen tablet, you never use these keys to unhide menu.

It could be more convenient to not use a key but to add an icon in the top of Cinnamon windows, near close/make smaller/make bigger icons, to hide/unhide menus.
What do you think about this?

[JosephMcc]

Not really doable. The decoration of the window (titlebar) and the application inside it are two different thing under the hood. The titlebar isn't actually a part of the application. A titlebar button can't really perform actions inside the actual application window.

[InfoLibre]

Then, perhaps adding an icon just under the titlebar, like this:

[InfoLibre]

In this application, the titlebar is a part of the application and the titlebar button can perform actions inside the application window:

[JosephMcc]

Your talking about csd vs ssd windows. The one you show with in the second post is a csd window and these don't have menubars, so that makes it a completely moot point. You are also leaving out that Mint doesn't develop things like gnome-terminal so that's mostly out of our hands. In gnome-terminal I'm pretty sure you can just right click in the app and bring the menubar back.

In any case, your original suggestion isn't going to happen.

[InfoLibre]

In Firefox, when you hide menu, you can after that do a right-click just under the titlebar and a menu appears, where you can check again menubar unhide:

Why not doing the same thing in other applications?

[InfoLibre]

Drawing (https://maoschanz.github.io/drawing/) : you can hide menus with CTRL+F2 but if you don't remember it, you can't unhide them. It's like Xreader (Alt key but you must remember it).

[JosephMcc]

Mint has nothing to do with the development of Drawing. They will make it behave how they want. We can't change that no matter how much nobody like it.

[Hilyxx]

In Nemo, if the menubar is hidden, you can right-click in the toolbar to unhide menu.
You have 3 options for menubar : keybinding, right-click or always show menu. Isn't that enough ?
Hamburger button is a bad idea when there are too many features and please, no CSD for Nemo 🤮

[InfoLibre]

In Nemo, you don't simply right-click in the toolbar to unhide menus. You must:

• right-click exactly between the title-bar and the panels (near the path).
• go into the menu that appears
• check Show menus (if you don't, menus will disappear again when you click somewhere else)
  It's impossible to remind all these things, particularly for people who discover computers in our associations. It seems simple for developers but it isn't for normal users. Hiding menus is perhaps important for developers who want to optimize space but it isn't for normal users who only need something stable, without menus disappearing when they do a wrong click or press a wrong key. And in Nemo, it's too complicated for newbies to unhide menus, they simply let Nemo without menus, that's what we regularly see.
  To unhide menus, a right-click with a menu+checkbox would be better, like with Firefox:

[InfoLibre]

Or in Nemo, it would be better to move menus hiding in Editions - Preferences, to avoid accidents:

[JosephMcc]

This isn't going to help anything. You can't "accidentally" hide the menu in Nemo. You have to go in the "View" menu and choose to hide the menubar. Even then, it pops up a warning to tell you what you are doing and how to get out of it.

[InfoLibre]

I disagree. You can accidentally choose the wrong choice in menu with your mouse and hide the menus. It happens a lot of times, I see a lot of people doing that accidentally after a few months of using Nemo and they don't even understand what the pop up means. And after, they don't know how to unhide menus. Users are lost after hiding menus.

• Hiding menus shouldn't be so easy to do. Better to move the checkbox in Preferences.
• Unhiding them should be done with the same mechanism than hiding them. By example, by clicking on an icon that remains after hiding menus, or something else.

[InfoLibre]

Same problem in Xreader. One see a lot of users loosing menus and not anymore adding them. They think there were no menus.

[InfoLibre]

I made a suggestion in Drawing: maoschanz/drawing#669
I like a lot their bug tracker templates (Feature improvement):