There is two types of windows:
1. Map "popups" - all kind of detailed windows. Unit, group, leader, leader, etc.. Since they have connection with each other - unit->hhq->leader, unit->ground element, etc, you can use right click to get back to the previous screen
2. Independent informational screens - Losses, Production, OOB, Commander Report, Weather, etc.. There windows can get called with a shortcut. Sometime you can get from informationa window to the popup, but there is no logical connection between them code wise.
Theoretically it is possible to implement all kind of "back", "forward", "bookmark", "history" buttons and make it look as Firefox

, but it is not that easy task. In many cases there is simple no free space on the windows. And making a separate hot key would be a duplication.
I suggest to play a little more and you should be really comfortable with interface and hotkeys - there is not that many of them
Also please please please make it so when you expand the OOB list by pressing the + symbol, that the list doesn’t reset all the way to the top. This is most aggravating when you’re searching the list for a specific unit.
This one is easier to do. Will take a look.
And finally I’d love a global command to put all air regiments into the national reserve. I’m anal about how I organize my air forces, so I dump them into reserve and sort them out into similar deployments later. Placing them all into reserve at the start of the game one regiment at a time takes forever.
Such function already exists in Commander's Report
This brings up a question, do air regiments in the national reserve train and gain morale, or should I get them back into units asap, even before they fill up their TO&E’s? Please forgive me if this is in the manual, I won’t be reading it in full until the printed version arrives.
Air groups in national reserve should be flying training mission. When moved to reserve they are getting single morale boost as well.