Nice work
I downloaded GR2EditorViewer_v1_0_402_0
Dont know really what i am doing .
I opened the undersea GR2 and edited the meshes scale for the rocks to 3 . I can see the larger rocks in the viewer ok . When i exit out of the viewer and then open up undersea again the GR2 file is the vanilla size again .
1.5 looks nice for the KGV hull .
If i try to open NBB_Nelson the message says Name was not found for mesh in pointers .