How to script .utx file and classes (.uc) files in one .u file .

[d.j.Chaos]

How to script .utx file and classes (.uc) files in one .u file . Many mods have scripted texture (.Uc files and utx files is one .u file - mod file ) . I changed textures from mod file , export all uc files , change textures , but how to put (script) everything back in .u file ?