1.) Go here in your file explorer.
C:\Users\[username]\AppData\Roaming\Relic Entertainment\Dawn of War\Profiles\Profile1

Make sure you use your username.
If your appdata folder is hidden, check “Hidden Items” in the View options of Windows Explorer when navigating there.
You can also enter “%AppData%/Relic Entertainment/Dawn of War/Profiles/Profile1” in a Windows Explorer window

2.) Save this LUA file into that folder. You'll see some KEYDEFAULTS LUA files already in there:
https://drive.google.com/file/d/1GDhAtlWZ4M4RDoCnxJ7fzuuVPvWBWhnR/view?usp=sharing

3.) Start the game, and open the Options menu, and change your keybinding to the one called "WASD".

To put it very simply, I took the Modern Hotkeys setup, bound camera panning to WASD, and any hotkeys using WASD were changed to Up,Left,Down,Right.

I tried switching it so the hotkeys would be on Shift+WASD, but that doesn't seem to work with whatever script Relic is using to make Shift+WASD work.
(Shift+S would still make the camera pan up, even if it was supposed make the unit stop, for example.)

Hopefully this is more convenient for some people than holding Shift constantly to move your camera.
I don't really use hotkeys anyway.