This is tutorial to patch other CC mods for my race....or for any race really, Im giving anyone a free permission to make CC patch for my race (mostly head/hair that is NOT messing with Race.lsx), for private use or public.

•  BG3 Modder's Multitool => for unpaking and paking mod. also for regenerate new unique UUID for you mod.
•  Visual Studio Code or Notepad++ for this tutorial sake im using VSC, but you do you, use which one you like. this is where you work.
  

• the CC mod that you want to patch should support Tiefling body.
• "Bodyshape" 0 Skinny, 1 Stronk. "BodyType" 0 Male, 1 Female.
• Know Tiefling UUID : b6dccbed-30f3-424b-a181-c4540cf38197
• Know my Reborn UUID : 0c9bdd34-0cd6-406f-be67-2fd6a69db195
  

• Run the installer for Notepad++.
• Unzip the BG3 Modder's Multitool and put it somewhere outside Program Files. (Legit installation instructions here: https://github.com/ShinyHobo/BG3-Modders-Multitool/wiki/Installation)
• Open up the application named "bg3-modders-multitool" and atop the window, go into configurations. (Legit configuration instructions here: https://github.com/ShinyHobo/BG3-Modders-Multitool/wiki/Configuration)
  

• UNPAKING : just drop CC mod pak (ex Elgoth Mod by hijimare) and mod patch from here that you want it to be the base and edited to be your mod patch to that BIG BLUE SQUARE in multitools, the unpaked mod will appear in folder named "UnpackedMods". usually itll appear the same place where bg3-modders-multitool.exe
• in the unpaked cc mod folder, search for CharacterCreationAppearanceVisuals.lsx. its in UnpackedMods\Elgoths head (no tav custom)\Public\Hiji_Elgoth\CharacterCreation.
• Open it with VSC/Notepad you'll meet something like this :
  

<node id="CharacterCreationAppearanceVisual">
                    <attribute id="BodyShape" type="uint8" value="0"/>
                    <attribute id="BodyType" type="uint8" value="0"/>
                    <attribute id="DefaultSkinColor" type="guid" value="a2b22bb4-dca6-275a-29dd-9ba5ca640498"/>
                    <attribute id="DisplayName" type="TranslatedString" handle="hefb05892gea53g4217g957ag01dd8c3d3e3c" version="1"/>
                    <attribute id="RaceUUID" type="guid" value="b6dccbed-30f3-424b-a181-c4540cf38197"/>
                    <attribute id="SlotName" type="FixedString" value="Head"/>
                    <attribute id="UUID" type="guid" value="61795a05-a0ac-45c9-a05b-eea9baf67c12"/>
                    <attribute id="VisualResource" type="guid" value="1a3aa1a0-b271-413f-aa1a-e302c19dda29"/>
                </node>

• LOOK FOR TIEFLING THINGS by "Search" (in vsc is ctrl+f) tiefling uuid : b6dccbed-30f3-424b-a181-c4540cf38197
• Copy all of tiefling things to your file/base CharacterCreationAppearanceVisuals.lsx in similar place as above. example if you use elgoth head mod patch from here its in : (PATCH) LODRebornRace_Elgoth's Head by Hijimare\Public\Reborn Race_Elgoth's Head PATCH\CharacterCreation.
  

• REPLACE 2 UUID that i bold above, replace RaceUUID from b6dccbed-30f3-424b-a181-c4540cf38197 (Tiefling UUID) into 0c9bdd34-0cd6-406f-be67-2fd6a69db195 (my Reborn race UUID). next in "UUID" line replace 61795a05-a0ac-45c9-a05b-eea9baf67c12 into brand new unique UUID using Multitool. by clicking "Generate" in multitool (make sure "Handle stay unticked). now 1 thing successfully patched! next just rinse and repeat to all things that you copied.
• Saves
• Editing Meta.lsx in your mod patch base folder navigate to "Mods" folder, if you use patch from here its in : (PATCH) LODRebornRace_Elgoth's Head by Hijimare\Mods\Reborn Race_Elgoth's Head PATCH. open the meta.lsx youll find something like this :
  

• you'll need to edit line that i bold above, edit "Author" lines to whatever you want, could also edit "Description" if you want to. But the most important part is editing "Folder" line make sure the name is the same/match with Mods\Reborn Race_Elgoth's Head PATCH and Public\Reborn Race_Elgoth's Head PATCH. next replace in "Name" line with whatever planned .pak name, if you patching for my race, please use "(PATCH)" on the front so its easy to spot in load order. next replace "UUID" line 53078709-e2c1-4bd5-8cf8-d9b1b0ff6fec into new unique UUID with multitool same like before. 
• Saves
• now for the last, to packing it into .pak, you'll just need to drop THE WHOLE folder that you make as base into BIG BLUE SQUARE in multitools, if there is no problem, the .rar file will appear the same place the folder location. open it, youll find your newly packed .pak! install it like usual. if there is no problem itll appear in CC reborn race.
  

• you know which body the custom race that you want to patch (ex : aasimar using human body, demon player race using drow) so you know what you'll be looking for in CC mod.
• the CC mod that you want to patch SUPPORT the body that race use.
  

• where can i find other vanilla race UUID to helps me searching in the lsx file? here the one under Races.lsx/CharacterCreationAppearanceVisuals.lsx
• where can i find the custom race UUID if i want to patch other race mod? in Race.lsx, for example in my custom race itll be in : LODReborn Race MAIN\Public\Reborn_Race\Race.lsx youll find something like this :
  

• what if....i only want some hair/head patched? that means youll need which that you want and identify it both in CharacterCreationAppearanceVisuals.lsx and localization file, for example, using unpaked Dissidia hair you can find loca find here : UnpackedMods\Dissidia_Hair - WOTD and TGAW\Localization\English open any .xml file there and see which that you want. in loca file youll find something like this