How can i show these buttons in the game?

[GLide KS]

So, i was seeing much people submiting gifs and screenshots showing these buttons:

How i can show them in the game? Requires a command or something?

 

[Deadpool The Hedge..]

It's a Lua not a command and it can be found here
https://mb.srb2.org/showthread.php?t=38691

 

[SteelT]

They used the input display script located here.
http://mb.srb2.org/showthread.php?t=38691
Seems it was already answered when I was making this post.