David, thank you for your answer.
I am aware of the hot keys. I could a) agree or I would b) still like to disagree and this looks this in an argument:
a) I would agree and say: Yes, there is a solution to my problem and it simply consists in pressing keys. No worries.
b) I still like to disagree because I see OS X compliancy violated. And the compliancy says to me that I want the menubar available "at at glance" for quick information access - just as it is available in any other OS X application. And I want the mouse over on a hidden dock - just as it is available in any other OSX application.
And because I understand that many others are happy with the full screen mode as it is, I am simply suggesting that there should be an option.
Since PD is singular in both cases, it causes awkward situations, especially on a multi monitor setups, and these situations are like this "I need a quick glance at the menubar. Oh, I am not on my second monitor, and now it need to extra use my keyboard." Or when wanting to access the dock, I sometimes first click my second monitor because then I know, I will get the dock on mouse over.
Full OS X compliancy would feel fluent. Everything else is OK, but just not fluent, which is like bumps in road while driving.
Do you understand this?