Very easy to use tool, just add your skins and save or export directly into Minecraft (W10) or use the McPack on the other Bedrock editions.
There's a quick guide with pictures and downloads at: https://github.com/FlavioGarciaDev/MinecraftSkinPackCreator
Feel free to ask any questions or suggestions!
Very good application!
how do i install the application?
Funciona con skins 128x128?
how do i open the app