How can I add a player’s clothing package without changing the code numbers used to modify the player’s clothing?
For example, in the illenium appearance plugin, when I add or delete a clothing package, the corresponding clothing code in the plugin also needs to be changed.
The best way to do this is to create your own, custom clothing DLC; it takes quite some time, effort and tinkering to set up, but is always a fine choice in the long run. See this guide to get you started: