Aside from selecting the groups in-editor....You can find and permanently alter these settings (for all TEXTUREGROUPS) in "UTEngine".
If you change them in DefaultEngine.ini I think it will change for both in-Editor mode and in Game mode.
Or you can go to simply view what the settings are for each group if you are just curious.
TEXTUREGROUP_Skybox=(MinLODSize=512, MaxLODSize=2048,LODBias=0,MinMagFilter=aniso,MipFi lter=point)
Last edited by Envelope; 01-26-2010 at 03:10 PM..