I don't understand what you want.
use datablocks without needing to place a block.
when you choose one, you become that datablock
when you open a client GUI, it has a drop-down menu that lists all available datablocks. when you choose one, you become that datablock.it would disable in minigames.
playertype
You would need a server side then.. You can't really change yourself client sided, either way if you tried the server side wouldn't recognize you.
for freebuild servers and servers that don't allow you to build
so OP basically wants to cheat by changing player types on a TDM server or something (servers that don't allow you to build.)
it would disable in minigames.
This was like super obvious for meIf the server has the mod, the client can morph datablocks with a GUI.
It's obvious to everyone who has no idea of how the game works