I received a PM from one of my friends with a question that made me realize the size of my images and my explanation may have lacked some clarity.
I have decided to answer the question here, for the benefit of anyone following this thread.
The question was about the way Dolphin is set up on each desktop.
First, the icons for Dolphin on the panels are all for the standard Dolphin, none are for the SuperUser Dolphin. You could put a SuperUser one there, if you wish, and as my friend suggested, you could colour the icon differently (red is the colour he chose for the SuperUser Dolphin icon on his own setup, BTW, seems to me to be a good idea) or use a different icon to identify it.
Instead, what I was trying to point out was that I had Dolphin set to launch with the Directory that is used for the Tasks on the active desktop.
To do that, simply right-click the icon and choose Icon Settings (Alt-D, S if you prefer the shortcut).
In there, go to the application tab.
In the Command entry box, you will see something like this:
dolphin %i -caption %c %u
Simply go to the end of that command, add a space, then enter the full path to the directory you want to open.
From then on, when you launch from that icon, it will open the directory you entered in that command. You can have more than one icon for Dolphin on the panel, with each icon launching a different directory.
Here are cutouts of my 4 Desktops, at a better resolution, to better illustrate the different panels and the Dolphin icons that launch different directories on each panel.
Desktop 1 (Dolphin launches the ~/ directory) and below it Desktop 2 (Dolphin launches the directory for tracking abusers and resources for hardening my website server)
Desktop #3, Dolphin launches my Photos Directory (with all my DigiKam albums in subdirectories)
Desktop #4, Dolphin launches the two main Directories where I currently work on Video editing. I drag files back & forth between the two while editing.
(You could also use tabs or two panes in Dolphin, but I prefer this method, myself)
I trust this makes things clearer to any thread readers who might want to borrow some ideas.