A way not to make things on the Top Bar move constantly

[HubKing]

Is your feature request related to a problem? Please describe.
The window buttons by default show left to the quick menu buttons (Wi-Fi, volume, battery). The problem is that things from other extensions or applications are displayed left to the window buttons. This means that whenever the visibility of the window buttons change, all the things left to the windows buttons move back and forth. This is very distracting.

Describe the solution you'd like

1. Option to reserve space. That is, even when the window buttons are not visible the space is reserved so that other things left to the window buttons do not move.

2. Or, add an option to set the window buttons position right to the Application Menu (which I use to display window title), like the screenshot below. Since the Application Menu is the last item on the Left region (I do not know what the technical term is), even if the window buttons appear/disappear, it would not affect the positions of other things.
   

Describe alternatives you've considered
I have tried to set in Unite options to make the window buttons always visible, but this caused me to often close wrong applications by mistake, so that was not a good solution.

Additional context
Add any other context or screenshots about the feature request here.