Is there any way to customize helm prompt?

[Wang Kai]

Helm tells user which kind helm window is used, for example, when
execute `helm-M-x', it shows "Emacs Commands" on the top. I think this
makes the prompt trivial, because almost all of the inputs are pattern
alike string.

Is it possible to set helm prompt a empty string? If it is, how could I?

Thank you!

--

[Tianxiang Xiong]

Are you writing your own command that calls `(helm :sources ...)`?

If so, you can use the `:prompt` keyword in the command.