Checkpoints plugin modification!

Hi guys

I need help with this sma file
I want to modify with this in the menu

Syn-Scripts Menu Chekpoint
say /menu for more info.

1.Checkpoint
2.Gocheck
3.Unstuck

0.Exit

/ / Client commands to open the menu say: /menu

/ / Checkpoint client commands say: / cp / checkpoint, / check

/ / Gocheck Client commands say: / tv, / gc / gocheck, / tp

/ / Unstuck client commands say : / stuck, / unstuck

and that the teleportation can be performed in air, and not
wait until you reach the floor.

would greatly appreciate your help, as it is for a server

here I leave the sma file.
http://www.sendspace.com/file/9rih4k