The skript you wrote looks good in terms of functionality, but I think it has a few shortcomings. For example, you can use the script's existing playsound system to play sounds for players instead of using a console command. Also, instead of typing “on inventory click:” every time, you can do other actions under the already written event. You can also write your plugin in a more optimized way by using functions. For example, instead of using “send ‘&cYou can only make one bind!’ to player” every time, you can use a function to detect “if {bind::%player%} is true:” and send a message. In this way, it will be much better in terms of readability. You can also use a function to make the player use a command. The idea is good but I suggest you improve it. Good luck.