When I posted these remarks in a different thread, I was advised to post these requests here.
Currently AD and AP offer two kind of workspaces: Docked and Separated.
The Docked workspace neither allows docking the tool palette on the right side, nor does it allow multiple columns of palettes docked to each other.
The 'Separated Mode' does not remember the size of previously saved document on re-opening and every time the document title bar hides beneath the control palette. Then, the only way to access the title bar in order to maximise the window or minimise it in the dock, one must utilise 'Toggle UI' command.
The 'Separated Mode' also does not allow docking the 'Tools' palette to the Studio palettes, or multiple columns of Studio palettes docked to each other.
Besides the fact that I am used to setting up my workspaces this way for over a decade now, according to a research, it is also more efficient for right-handed people to keep palettes and tools on the right side.