Here are some events that seem very useful, and mostly, simple, but have not yet been created.
-onPlayerKill--> victim/culprit
This would have various uses (point counting in certain minigames, RPGs...)
-<%1>
Explanation: Not actually an event. When making a chat, center, or bottomprint message, the take <%1> is replaced by the activating player's name, example:
OnActivate--> Client--> centerprint --> <%1> is awesome!
If I clicked it, I would get a centerprint reading : "Cucumberdude is awesome!"
-messageAll
A new output, would message anybody in the server (like minigame message all, with no minigame)
All of these, except maybe the onPlayerKill one, seem quites simple (?), but very useful. Thanks!