So as im new to cubedcraft, I found the glitches by myself. The tntwars glitch allows you to cross the island and grief/build there (i didnt do these things, so please dont ban me) to do it you just need to build a classic missile, get on it and start it. Then Just release all keys and your mouse and the will think that you are not moving making you able to cross the island. Homewer if something moves you or tnt explodes you, you will be stuck forever (untill rejoin or getting killed). The second thing I am gonna report is the /execute command. I dont know why it doesnt work but when i write:
/execute @e[type=endermite] ~ ~ ~ clone -184 158 14 -185 159 25 ~ ~2 ~
It will say: "All avocations failed". Can someone please help me?