Gamemode 3 on Servers

On a Minecraft with plugins such as Worldedit if you are holding a Wooden Axe (Worldedit wand tool) in your hand then do /Gamemode 3 you will be in spectator mode but by right clicking you can use Worldedit wand, this also works for claim plugins where right clicking with a stick will show claims.

Also the hotbar in Gamemode 3 cause the client to freeze for a second while it loads, hit 1-9 while in gamemode 3 to show a hotbar to TP to players.