Change default skin

[ddr]

Thank you Fhechene, my english is not so good and I forgot some informations
I want to change some default scheme of some planes (mc.200 and .202, cr.42, bf-110 and so on) for some theater (desert, mto, east front -summer-) and if possible nations (italy, hungary, romania...), so I make a "skin mod" (MODS/Skin_Mod/3do/plane/*nameofplane*/summer etc...) in my MODS folder in il-2 4.14.1 with mods .exe, but I think I need a list of possible specific folders in which copy-paste the files I want to use... or is not possible this kind of "personalization" in default schemes?
I hope I have clarify my question
Thank you very much!
Francesco