[Click] Suggestion?

[JS]

Hi everyone,

I am supposed to do an evaluation of click for my university. This implies
trying to see if it is easy to used, easy to implement new elements... So I
have started to check the code of a few elements to see if it was
understandable, and now I am looking for a new element to do.
And so I was wandering if anyone had any idea about a simple element that is
not yet implemented so that I could see how difficult/easy it is to
implement a new element in click.