Salutations Eric!
You're right, DGUI is not tuned for GWR. Remove Commands_en (de) .cfg from it. I copied them to Documentation folder instead of moved.
Help F1 and I think everything will work.
Yes, and don't forget this fix
https://www.mediafire.com/file/1p6p8...Uboat_9_val.7z
Which mod WideGui 1920x1080 has a free deck camera?