Well, I did enable the PE revised facilities mod properly for 1917 (for my Jasta 29 Campaign)
after that enabled the populated airfields mod to test (I know it's still UE compatible only) and I did saw the little men around.
In our first base (it was an OBD generic) there were mechanincs arount planes that were absent!
Then we got a tranfer to Phalempin and I saw a custom airfield for the first time.!
I liked the different arrangement from the one I was used to but,
IMHO it did not blend in flawlessly with the PE crisp textures...
and this time the mechanics were around Fokker D.IIs (in 1917?)
The next day the stationary planes were Fokker D.VIIs (in 1917?)
.
(right-click on images and open in new window to view in full size)