Please don't be surprised, I don't know how to put the question. So on my server we want to build a McDonalds in the city. Heads are sold that look like citizens. So can you somehow adjust it so that you can only eat this head and not eat other heads? I know you can't eat heads, so I ask.
That should work with a plugin or script. (Not eating the "right" one)
Yes and with which one?
At the moment I don't know of any plugins that add this function. Programming one yourself shouldn't be difficult.
1) How do you program your own plugin? With Java, right?
2) I play on my Aternos server, where you can't load self-programmed plugins, I think.
1) With Java.
2) I don't know, I don't believe in such hosts.