Here is the solution that achieved what I think it is the poster is looking for (although I think there are some semantics that have confused the issue over the long thread).
The poster wants to see the Dock (typically the very bottom bar, with access to all the applications), the Menu bar (typically the very top, with access to items like "File", "Edit", "View", etc.), and the document itself that is of interest within the application, taking up all available space in the middle - like is commonly true in Windows. All three of these items should be present at all times, and should take up the entire viewable screen. He/she also doesn't want to muck around with clicking and dragging things all the time to get access to the screen "real estate".
"Full-screen" isn't the right mode for this, since the intention of full-screen is to hide everything but the most essential items for the immediate task at hand. Stuff like access to other files or applications isn't usually considered germane to the task at hand, so it's hidden, but accessible if you hover in the right places.
Since the poster wants all these things in view at the same time, and doesn't want any "unused" screen space, here is what worked for me to accomplish this:
- Exit full-screen mode if you are in in it (hit cmd-cntrl-F, or click on the doodad in the upper right of the menu bar that appears when you hover up near the top edge of the screen (if it's otherwise hidden), that shows two arrows pointing inward to each other).
- Go to Settings, Dock, and uncheck the following if they are checked: "Automatically hide and show the Dock" (uncheck the box) and "Double-click a window's title bar to minimize" (uncheck the box). (For more about what the latter means, click on the ? on the lower right. It explains that "Deselect to expand an app window to fill the space between the Dock and the menu bar by double-clicking its title bar."
- Double click on the title bar of the particular document within the application that you want to "maximize" (to use a WIndows term). You should see this window expand take up all the rest of the available space. Also, when you close the document and reopen it, it should open back to the same view state, so should take up the whole screen.