While command Blocks may not be used on the PC gamer server (IDk if this is true since I haven't played in a while and am waiting for the world reset) I thought it might do some good for players that do not know how to use them and would like to.
First off, Command block have to be spawned in (for now). The Item number is 137.
Second off they have a lot of use but can take some time to set up just right.
Now... to the Wiki
As for my hopes in command blocks... I hope they get some (small) use in the PC gamer server. Nothing huge. Maybe a weather control (to cut down on some lag) and maybe some other small things (PvP maybe). I'm not pushing for this but It may cut down on some smaller plug-ins that need updated every so often.
Ty and have a nice day.