How to change a map's skybox that isn't easily replaceable in the assets?

[MusicForThePiano]

Hello again, I am also attempting to give each map its own unique skybox, and I have successfully replaced all of the existing ones, however there are a lot of overlaps, for example, giving korriban a suiting skybox for kor1 will also change t2_dpred, and kor2 will change the tatooine levels. Do I have to access the maps in GTKradiant to change this feature or is there another way to do it? I'm a noobie modder in regards to mapping, so I'm still learning there. I want to give all 26 levels their own unique skybox.

[mrwonko]

You could hex edit the BSP files to edit the texture names, just make sure to overwrite existing bytes instead of inserting new ones. You'll also need to write some new shaders for your new sky boxes.

[MusicForThePiano]

Is xvi_32 a good hex editor for the JASP .bsp maps?