Deoplete.nvim: Leave the preview window always closed

[caneta]

Hi @Shougo and thank you for your great work.
I'm reading the deoplete docs, but I cannot find a way to disable the automatic opening of the preview window when deoplete matches something.

I set up the automatic close with autocmd CompleteDone * pclose! when I choose a match, but I would like to keep it always closed and open it when I need it.

How can I reach these goals?

Thank you.

[Shougo]

set completeopt-=preview

[caneta]

Ok, so this is not deoplete related, but a general Vim/Neovim general settings.
But this is only half of the answer: if I have a match that I'curious to learn more about, how to open that window?
Sorry for my newbe questions, but things like that maybe deserve to be inserted in the docs...

[Shougo]

But this is only half of the answer: if I have a match that I'curious to learn more about, how to open that window?

It cannot. This feature is not implemented in Vim/NeoVim.

[caneta]

Ah ok, this is s a pity.
Thank you anyway!

[stsewd]

Probably this will be very useful on the faq section, can we put it?

[Shougo]

Added

[zachliu]

Instead of set completeopt-=preview, is it possible to toggle it dynamically?

[Shougo]

It is possible.
You should study Vim script.

[nomasprime]

Thanks @Shougo this was driving me crazy.