This plugin allows you to edit Custom Textures ingame without using NBTEditor. Commands are /ptgive <pokemon> <PlayerName> <Value> now, for example, the value means the Custom-ghost in your texture pack and it would be /ptgive Lugia runescapejon ghost. Same goes for the command /pts but it doesn't give anyone the pokemon it just spawns the pokemon the way /pokespawn in pixelmon would. If you want more information about Custom-Textures please read the following wiki that the Pixelmon Team has provided for all of us https://pixelmonmod.com/wiki/index.php?title=Custom_textures
If you need support I'd made a discord for it. https://discord.gg/XXgEpq3